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The Mac is back and more Pro than ever, throwing away the cylindrical “trash can” design in favor of something that resembles a computer. Its appearance may harken to the original Mac Pro from 2006, but can it compare in the repairability department? We dropped six thousand dollars and one block of hard cheddar to find out. Let’s tear it down.

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This teardown is not a repair guide. To repair your Mac Pro 2019, use our service manual.

  1. Mac Pro 2019 Teardown, Mac Pro 2019 Teardown: step 1, image 1 of 3 Mac Pro 2019 Teardown, Mac Pro 2019 Teardown: step 1, image 2 of 3 Mac Pro 2019 Teardown, Mac Pro 2019 Teardown: step 1, image 3 of 3
    • It may not be the expensive configuration handed out to so many YouTubers, but our base model Mac Pro will still put a dent in your titanium Apple Card wallet at a cool six grand, offering:

    • 8-core Intel Xeon with 24.5 MB of L3 cache and a 4.0 GHz max turbo frequency

    • 32 GB (four 8 GB modules) of 2666 MHz DDR4 ECC Memory

    • AMD Radeon Pro 580X with 8 GB of GDDR5 VRAM

    • 256 GB PCIe-based flash storage module

    • 802.11ac Wi-Fi wireless networking and Bluetooth 5.0 wireless technology

    • Like the Mac Pro before it, this one is also "Assembled in USA" at a plant in Texas. They say everything's bigger in Texas, and this new Mac Pro is no exception.

    • Unlike the old Mac Pro, this one has a new model number: A1991, and EMC 3203.

  2. Mac Pro 2019 Teardown: step 2, image 1 of 3 Mac Pro 2019 Teardown: step 2, image 2 of 3 Mac Pro 2019 Teardown: step 2, image 3 of 3
    • From the side, the Mac Pro is about as Apple as they come. Huge, honkin' Apple logo? Check. Cold, hard stainless steel? Check. Precisely milled aluminum slabs? Check.

    • Around back, we spot some ports: a 3.5 mm audio jack, two Thunderbolt/USB-C ports, two USB-As, two HDMIs, two 10 Gb Ethernets, and a run-of-the-mill C14 power plug.

    • Ports are cool, but we're more excited about what's behind all that black plastic: eight PCIe slots, which add up to more upgradability than we've seen from any Apple product in a long time.

    • From above, you can spot two more USB-Cs and what looks like an inconspicuous power LED to the left of the power button.

    • We already got a look at the Mac Pro's two primary handles, but what's this third one up top?

    • Maybe it opens the computer? Nah, it can't be that easy.

  3. Mac Pro 2019 Teardown: step 3, image 1 of 2 Mac Pro 2019 Teardown: step 3, image 2 of 2
    • Before we tear down, we ask our friends at Creative Electron to stuff our Mac Pro into their X-ray machine.

    • Unsurprisingly, this thing is so big that it wouldn't completely fit into the X-ray cabinet—but so far, it's looking a lot like a tower PC.

    • That's good news, everyone.

    • Despite its cheese-grater appearance, this new Mac Pro cannot grate cheese. This important consumer advice is brought to you by iFixit, the company that wonders: why doesn't anybody send us review units?

    • We cleaned and de-cheesified the outer casing (quite easily with a halberd spudger) before putting it back on the computer. So don't worry—it smells fine.

    • Time to open the case. We came to this teardown armed with many tools, but so far all we need is our fingers.

    • Some informative dots tell us this handle rotates, and with surprising ease.

    • Like Johann Schmidt delicately handling the Tesseract, a twist and pull on this third handle uncovers everything hiding beneath.

    I’m curious how the cover slides past the four handle rails. Does it touch/scratch as it slides by?

    Matthew Smith - Reply

    Don’t quit your day job. Comedy is not your thing.

    Bennett - Reply

    take it easy bennett, it’s just cheese

    Andy Miller -

    Is the cover dishwasher safe? That would make de-cheesing a whole lot easier…

    Bob Laughton - Reply

    this is gold.

    judah johnson - Reply

    The account tied to that YouTube video was terminated so video has been deleted.

    ccfman2004 - Reply

  4. Mac Pro 2019 Teardown: step 5, image 1 of 3 Mac Pro 2019 Teardown: step 5, image 2 of 3 Mac Pro 2019 Teardown: step 5, image 3 of 3
    • The housing slides off with little effort or drama—no proprietary screws or adhesive in sight!

    • Inside, we get a peek at the locking mechanism, which looks awfully familiar...

    • A closer look reveals pogo pins under the power button that correspond to ...

    • ... contacts on the housing. Removing the housing breaks the connection, cutting power to the machine. Neat!

    As Peter Paul Chato pointed out in his “fevered dream” update on YouTube, it is too bad that Apple decided to engineer the top cover to not be removable without removing ALL the rear cabling. Would have been nice to have seen some genius feat of structural engineering, like putting a structural wishbone in there, to make it so you could remove the cover without necessitating disturbing the cabling.

    Also of note that the pictures released thus far of the rack-mount Mac Pro don’t show any change to the back panel, and no cable management arm to be seen.

    Scott - Reply

    Maybe it’s a feature. They always tell you to unplug everything before you go snooping inside to install something. Now you have to.

    Well, maybe only the power plug needs to be unplugged. They could have made it so only the power cord would obstruct opening the case. The top ports need to be disconnected at least.

    Joseph van Tunen - Reply

    The pogo pin does not cut power it just removes power to the LED but obviously it cannot be removed without unplugging everything.

    Rohan Green - Reply

  5. Mac Pro 2019 Teardown: step 6, image 1 of 3 Mac Pro 2019 Teardown: step 6, image 2 of 3 Mac Pro 2019 Teardown: step 6, image 3 of 3
    • Unfazed by the ominous array of black modules in the case, we pull the first switch we can find, and...

    • Voilà! Up pops the first memory cover, revealing two out of the four sticks of RAM that came with our base configuration model. (There's room for eight more sticks in there.)

    • Still no tools required for any of this—if you have opposable thumbs, you can replace this RAM (we even have some!). Somebody pinch us.

    • The cherry on top is the handy diagram on the insides of the RAM covers, showing which DIMM slots to populate with different amounts of memory.

    • As an open-source repair guide for every thing, we don't have to tell you how much we <3 this kind of repair documentation.

    This looks like 2933 ram on the base model?

    Jason Benguerel - Reply

    RAM speed is determined by the processor. This particular stick of DDR4 will down clock to 2666MHz.

    ryanwgregg -

    I thought iFixit was saying they were selling opposable thumbs. Disappointed.

    Jonathan - Reply

    Oh, we’ll sell you the thumbs—but if you have to ask how much, you can’t afford it.

    Jeff Suovanen -

  6. Mac Pro 2019 Teardown: step 7, image 1 of 3 Mac Pro 2019 Teardown: step 7, image 2 of 3 Mac Pro 2019 Teardown: step 7, image 3 of 3
    • The feet are held in place with just one screw each—although the screws themselves are buried deep in slots in the space frame pillars, making them a bit awkward to access. We make do with a 4 mm hex key and a Mako driver for extra leverage.

    • The screws are held captive inside the frame, so you won't lose those, but we can't say the same for these feet. Better keep an eye on these things so they don't run away.

    • We didn't shell out the $400 for the wheel-y upgrade, so it's nice to know that we don't really need to drag this thing to the Apple store to swap its shoes.

    • If you're feeling adventurous and want to attach your own feet or wheels, the screws are M5x0.8. Since we can't remove them, we're unsure of their exact length, but we estimate 15-20 mm. They extend out about 4-4.5 mm from the bottom of the aluminum slab.

    Really would like to see how the wheels are attached/removed, and if the wheels can be locked from rotating.

    Barry Sharp - Reply

    I’ve seen a couple YouTube videos showing removal of the feet. Snazzy Labs posted a video today which shows that (plus taking apart the rest of the Mac Pro). I haven’t seen a video that shows the feet though.

    Joseph van Tunen -

    At $400, they are Wheels Of Fortune.

    Harry Solter - Reply

    What’s the threading for the screws holding the feet (or wheels)?

    Tim Thomas - Reply

    Hey Tim, we’ve updated this step with screw measurements!

    Craig Lloyd -

    If you remove the feet (or wheels) can the case lie completely flat or will the screws dig into the floor?

    Dr EGPU - Reply

    Yes, it would, but I don’t think I’d advise that due to heat concerns, as the PSU is right at the bottom; not to mention the screws are captured, and may protrude a slight amount . You could likely get away with very shallow feet, though. the video here shows removal and stills: (

    frederico -

    Can you remove the top handles like the feet?

    Curtis Abbott - Reply

    Yes. But have fun moving it without them.

    frederico -

    would you be able to tell me the dimensions of the feets? thanks

    Johnathan - Reply

    • The I/O boards are held in place by Phillips head thumbscrews and can be loosened (and tightened) by hand. But our trusty Manta Driver Kit is always here to assist.

    • All PCIe cards are locked in place by a single switch (handily labeled as step 2).

    • This switch moves a rail with little hooks on it that secure anything in their path. In other words: one switch to remove them all, one switch to bind them.

    • And we gotta say, it's a really nice feeling switch.

    Any chance shots of the I/O card and PSU are forthcoming?

    repoman27 - Reply

    I could see a TPS51980A on the I/O card but I could not see the Thunderbolt controller (probably a JHL7540 like for the top ports). The I/O part of the card appears to have 44x2 pins which is enough for two DisplayPort inputs (≈20 pins each) and two USB 3.1 gen 2 inputs (≈9 pins each) plus some other connections (Thunderbolt header (sleep signals, force power, plug even, like on a PC motherboard)? audio (because all the PCIe lanes are used by the Thunderbolt controller so there’s none left for an audio controller?).

    Joseph van Tunen - Reply

    Would like to see how the Promise Pegasus J2i and the R4i 32TB RAID MPX installs along with mention how the J2i disk cables attach to the data and power connectors.

    Barry Sharp - Reply

    Hey Barry,

    @ryanwgregg helpfully provided this link showing a user’s experience with the J2i. From the looks of it, the drive cage clicks onto various standoff posts. The included cables attach directly from the drive ports to the data and power connectors.

    Arthur Shi -

    For the I/O part of the card, I forgot to say that there may exist two USB 2.0 connections (≈ 2 pins each) because Titan Ridge in other Macs use USB 2.0 from the chipset to provide support for USB 2.0 devices connected to the Thunderbolt ports. I wonder if the I/O connector also includes serial lines from the UARTs?

    Joseph van Tunen - Reply

    So now you have me thinking, the C621 PCH only provides 14 USB 2.0 ports, and by my count:

    2 for the Thunderbolt 3 ports on the top of the case

    1 for the internal USB 3.0 Type-A port

    2 for the Thunderbolt 3 ports on the Apple I/O card

    2 for the USB 3.0 Type-A ports on the Apple I/O card

    4 for MPX slot 1 (up to 4 Thunderbolt 3 ports)

    4 for MPX slot 2 (up to 4 Thunderbolt 3 ports)

    Which is one too many for the PCH, so there must be a hub or additional USB 2.0 EHCI somewhere to make that work.

    I did spy a pair of TI TUSB1002A USB 3.2 10 Gbit/s dual-channel linear redrivers on the I/O card, which would be for the USB 3.0 signals routed from the PCH to the USB Type-A ports via the proprietary portion of the I/O card connector. There’s also the JHL7540, a pair of TI CD3217B or similar USB PD/Type-C port controllers, and possibly a Cirrus Logic CS42L83 audio codec on the card, but you can’t make out any of the part numbers. The audio codec probably needs a couple S2I connections to the T2 chip.

    repoman27 -

    Do we know for sure that Titan Ridge in host mode can’t provide its own USB 2.0? I have a Titan Ridge Thunderbolt dock with Titan Ridge USB controller that supports USB 2.0. Maybe that’s a feature of the JHL7440 that doesn’t exist in the JHL7540. Actually, I don’t know what chip it uses because I can’t open it and the pci ids database calls all Titan Ridge chips JHL7540…

    Joseph van Tunen -

    The decision not to include an EHCI in Thunderbolt 3 host controllers is slightly baffling to me, but does make a modicum of sense at least in the host context. I’ve yet to determine whether the JHL7440 includes one, but if it doesn’t, then it’s a pretty ridiculous thing to leave out. You should be able to look at the USB Device Tree in System Information with a USB 2.0 device plugged into the various ports and see how it’s listed. For instance, If I connect a USB 2.0 device to the Thunderbolt 3 port of my MacBook Pro, it shows up under AppleUSBXHCISPT, which would be the Sunrise Point PCH, vs. AppleUSBXHCIAR for Alpine Ridge or AppleUSBXHCIFL1100 for Fresco Logic FL1100. There are very few two-port Titan Ridge devices in the wild where the second Thunderbolt port is actually exposed, and it may be partly due to the shenanigans involved in properly supporting USB protocols on that second port.

    repoman27 -

    Yes, the driver for the USB 2.0 port on my Titan Ridge dock is AppleUSBXHCITR. TR = Titan Ridge.

    The Titan Ridge is different than Alpine Ridge because it has a USB output that is separate from the two Thunderbolt outputs. The downstream Thunderbolt port can be used for USB (port 1 for USB 2.0, port 3 for USB 3.x), DisplayPort, or Thunderbolt. The USB output of the Titan Ridge is just for USB (port 2 for USB 2.0 and port 4 for USB 3.x). I have tested a USB 2.0 mouse and a USB 3.x flash drive.

    The Blackmagic eGPU is similar to my dock but it uses a JHL7540 so maybe all Titan Ridge chips have the separate USB output. So what makes the JHL7440 special is that it can accept USB-C with DisplayPort alt mode as input through a Thunderbolt port. And so there don’t appear to be any shenanigans required for USB on Titan Ridge in peripheral mode.

    As far as I know, You can only use both USB ports of Alpine Ridge when it is in host mode which has both Thunderbolt ports as downstream.

    Joseph van Tunen -

    Upon further consideration, I’m pretty sure USB 2.0 never touches the Thunderbolt controllers. In a host setup, the signals are routed from the PCH to each Thunderbolt port controller. In 2-port device configurations, USB 2.0 is routed directly from the upstream port controller to the downstream port controller, unless the design requires USB 2.0 for some reason, in which case it’s routed to the upstream facing port of a hub instead.

    As for JHL7440 support for USB3 hosts, the simplest way to achieve this logically is for the downstream Thunderbolt and dedicated USB ports to be connected to the downstream facing ports of a hub, with the upstream facing port of the hub connected to a 2:1 mux which can switch between the upstream Thunderbolt port and the integrated xHCI depending on the capabilities of the attached host. There is probably only a single stepping of Titan Ridge silicon, but for obvious reasons, that mux would have to be either fused off or fixed in firmware for host implementations.

    repoman27 -

    Who else moved back and forth between the second and third image multiple times?

    (Precision photography - nice!)

    Tom W. - Reply

    The conventional PCIe portion of slot 8 sure looks like it’s x8 both physically and electrically, yet we know that’s only billed as an x4 slot. What’s up with that? I’d really like to see better shots of the Apple I/O card.

    repoman27 - Reply

  7. Mac Pro 2019 Teardown: step 9, image 1 of 3 Mac Pro 2019 Teardown: step 9, image 2 of 3 Mac Pro 2019 Teardown: step 9, image 3 of 3
    • It's raining modules! The I/O board, video card, and power supply all come out from the same side of the case.

    • We stop for a moment to admire all the numbers indicating the order of operations. Labels are great for repairability! (Believe it or not, not everyone reads the repair manual.)

    • The power supply is the last easily-removable module to come out. It's held in place with a single T8 Torx screw.

    @ iFixit, a little teardown for the GPU package? Want to see its internal structure.

    P.S. Curious about the power supply, do another teardown for that?

    KillerLab 233 - Reply

    I wonder what the possibility would be to get an additional i/o board. I need 3 thunderbolt 3 ports for my set up, but i’m reluctant to use the top ones (just bad style).

    Dave Kimura - Reply

    Agreed. But the only way I can determine, so far, to add actual Thunderbolt 3 ports is to upgrade the video card for $2400-$5200 (W5700X pricing TBD), each of the upgrades including four more Thunderbolt 3 ports, each.

    I’m stuck in the same boat; with just the 580X, I would burn all four base ports attaching my peripherals, with no room to grow, save for expensive, flakey pass-through hubs I don’t otherwise need.

    there’s been some limited success getting the $100 Gigabyte Titan Ridge Working on cMP, and they definitely work on certain Hackintosh, but MP 2019 doesn’t have the stated required TBC board headers, and so far I can’t find anyone who’s even tried it to see if the TB headers are irrelevant, and effectively present and wired directly on the actual PCIe slot, not just the MPX; I’m planning on trying it, but I’m pretty certain it’s the latter, and it’s not going to work.

    frederico -

    it’s not out of the question for someone to build a TB3 card for the 7,1, but it ain’t gonna come in at $100, that’s for sure. Not being able to justify the need for the Vega card , or unless the W5700 comes in much cheaper than I’m predicting at around $1400, I’m going to be installing aftermarket video to free up the two top ports for come and go devices.

    frederico -

    And the real kicker is the Apple I/O Card will only work in Slot 8.

    frederico - Reply

  8. Mac Pro 2019 Teardown: step 10, image 1 of 3 Mac Pro 2019 Teardown: step 10, image 2 of 3 Mac Pro 2019 Teardown: step 10, image 3 of 3
    • Teardown Update: Let's take a closer look at this custom AMD Radeon Pro 580X video card module:

    • When you pull the release latch, it engages two rollers on the opposite side, which simultaneously undock the card and push it away from the mothership motherboard.

    • Unlike the module itself, the silicon inside does not come out with a clever lever! A few sneaky screws are hidden under a giant sticker atop the cooling fins, and then we have to carefully disengage the lever mechanism before we can finally pull out the card.

    • For our efforts, we are rewarded with the following:

    • The main event! AMD's Radeon Pro 580X, (an iteration of their Pro 500 series for Macs) built on their 14 nm Polaris architecture, featuring 36 compute units.

    • Two rows of Micron GDDR5 VRAM, totaling 8 GB

    • 2x MegaChips MCDP2920, likely something akin to their MCDP2900 DisplayPort 1.4 to HDMI 2.0 converter

    • International Rectifier IR35217 buck controller (similar to the IR35211) and NXP's L6524 I/0 expander

    The pictures show the four 4 lane DisplayPort 1.4 connections are at the end of the MPX slot away from the MPX power pin. So the unused pins near the MPX power pin are probably for the two 4 lane PCIe connections for the two Titan Ridge Thunderbolt controllers that the Radeon Pro 580X doesn’t have (and probably four USB 2.0 connections if Titan Ridge doesn’t support USB 2.0 itself).

    Joseph van Tunen - Reply

    I attempted to pull out my 580x in order to replace it with a more powerful 5700x, but I heard something snap inside when I tried to pull the release latch (that module was REALLY stuck in there) and now the latch no longer engages the two rollers on the opposite side. Can anyone advise how I can remove the module at this point? Not sure if those rollers locked the module in place or merely aided in pushing it out. And yes, I did remove both retaining plates and flicked the switch to unlock before I attempted to remove the module. Any help greatly appreciated!

    marc Sedaka - Reply

  9. Mac Pro 2019 Teardown: step 11, image 1 of 3 Mac Pro 2019 Teardown: step 11, image 2 of 3 Mac Pro 2019 Teardown: step 11, image 3 of 3
    • What a pleasant surprise! Removing the blower fan housing reveals the teeny-tiny SSD.

    • We're happy to see a modular SSD, but not happy knowing it's bound to the T2 chip, meaning user-replacements are a no-go.

    • That said, there are plenty of other ways to add storage, so it's not a total loss!

    • This SSD looks very familiar—Apple seems to be re-using the same design we saw in the iMac Pro. That's probably a good thing, as parts availability tends to improve with more devices in circulation.

    No peek under the sticker there on the NAND module?

    repoman27 - Reply

    It’s worth noting for anybody unaware: this is not exactly an SSD. It’s a card with flash chips and a buffer, but no controller. The controller is the T2, which is on the logic board.

    This makes aftermarket storage easier to manufacture (no need to source a controller or the firmware for it), but due to the limited market, I wouldn’t expect to see anybody but Apple make these modules.

    Zimmie - Reply

    Can you verify that users can replace that NAND part if we get a replacement part separately?

    Hardware Software - Reply

    @Hardware Software: not user replaceable, looks like it’ll require a trip to the apple store


    Mac Pro supports up to two solid-state drive (SSD) modules. If you need to remove and replace the SSD modules, contact Apple or an Apple Authorized Service Provider.”

    Surebet SA - Reply

    After going through really frustrated conversation with Apple tech support yesterday, and with this article, I would recommend not to DIY any T2-related part. Apple is not exactly being friendly to disclose further guidance for user to replace these parts. In fact even expert like OWC couldn’t crack down enough to provide compatible parts on iMac Pro.

    With all the friendliness swapping out parts, this is an area you don’t want to get your hands wet.

    Marinna Cole - Reply

    With a machine of this calibre, why Apple did you not go with an industry standard NVMe slot instead? I’m sure there would be some relatively straightforward way to keep the T2 crypto engine and still use NVMe storage.

    At least Apple’s pricing for SSD storage isn’t insane, however with NVMe slots, we could use a Samsung 970 Pro and add 1 TB of storage for $300 instead of $400.

    Kai Howells - Reply

    This document explains what kind of control freak Apple is.

    Marinna Cole - Reply

    It would be nice to have confirmation that it is user replaceable, even if users have to buy those replacements from Apple.

    Henrik Helmers - Reply

    Plenty of PCI-e slots, and NVME to PCI-e adapters are readily available. Would performance suffer with a PCI-e SSD vs. the included SSD?

    Steve Wechsler - Reply

    The SSDs are encrypted by the T2 and therefore have added security. I guess the T2 is acting as the NVMe controller? I haven’t seen pictures of the modules that show if they have a controller or not.

    The base configuration comes with only one SSD module. If you have a configuration with two modules, are they hardware RAIDed together? Apple does not say either way. A RAID would require 8 PCIe lanes instead of 4 so probably not.

    macOS doesn’t allow booting from software RAID of normal SSDs (without some setup difficulty).

    Joseph van Tunen - Reply

    Apple now offers SSD upgrades on their website that can be user replaced but requires a USB-C/Thunderbolt 3 cable and a USB-C/Thunderbolt 3 capable Mac that has the apple configurator software installed.

    Rohan Green - Reply

  10. Mac Pro 2019 Teardown: step 12, image 1 of 3 Mac Pro 2019 Teardown: step 12, image 2 of 3 Mac Pro 2019 Teardown: step 12, image 3 of 3
    • The three-fan array comes out in one piece. It's held in place with six screws and connects to the logic board with spring contacts—no fussy cables to deal with!

    • The three tower fans pull cool air through the cheese-grater holes at the front, and push it across the logic board through the various heat sinks. Then the blower fan vacuums up the hot air and spits it out the back.

    • A few interesting things about this arrangement:

    • Most tower computers have dedicated fans for the CPU and GPU in addition to fans at the front & rear of the case. The Mac Pro just has front and rear fans, which supposedly provide enough cooling to keep it chill under stress.

    • Another thing most tower computers have: some sort of debris filter to get rid of particles in the air that the cooling fans pull in. Apple's engineers are on record saying they don't need that, but only time will tell how dusty these things get.

    Do you guys still care about the actual tear down? Where are the screws that’s holding the fans? Useless guide for people who actually want to use it for actual repairs not talk show

    John - Reply

    Hi John,

    As noted in the introduction, this teardown is an educational first look into a device, where we note interesting features and give it a repairability score. It is not meant to be used as a repair guide—for that, please refer to our repair manuals.

    Arthur Shi -

  11. Mac Pro 2019 Teardown: step 13, image 1 of 3 Mac Pro 2019 Teardown: step 13, image 2 of 3 Mac Pro 2019 Teardown: step 13, image 3 of 3
    • What's this? A little baby module! This one's nestled between two groups of DIMM slots and appears to be the speaker.

    • With basically everything else out of the way, we turn our attention to the brains of this whole operation: the CPU, currently trapped beneath its giant heat sink (and some very deeply hidden T15 Torx Plus screws).

    • With no CPU replacement guide to turn to, we call an audible and unscrew the heat sink bracket from the backside of the logic board—releasing both bracket and CPU (Intel Xeon W-3223) from the LGA 3647 socket.

    • We hope Apple is hard at work fleshing out the rest of the service manual for this Pro Mac. (But our hopes aren't too high—we've already started making the instructions they're missing.)

    Will this unit have multiple CPUs as the Mac Pro 5,1 depending on the number of cores? I wonder if I can get the basic configuration and upgrade to the max when it’s cheaper, anyone knows?

    Alberto Velandia - Reply

    This is a SINGLE socket design. The 3000 Series of the Xeon W does not support a dual socket configuration.

    ryanwgregg -

    Deeply hidden T15 screws, you say? Great callback to the original Macintosh!

    shelby_r_davis - Reply

    Yep. I wonder if my 16” long T15 screwdriver (for opening my Mac SE) will work here.

    shamino -

    @Alberto Velandia, All configurations of this Mac Pro will be one socket.

    jest7 - Reply

    Does the speaker contain the 6-speaker-system and the 2 force-cancelling subwoofers like the 16-inch MBP? It’ll be cool if Apple had put such an advanced sound system into a “Pro“ tower.

    KillerLab 233 - Reply

    No, the speaker is absolute garbage according to a video clip Snazzy Labs posted on Twitter. Not sure why they didn’t re-purpose some of the MacBook Pro drivers, or even one from the iPad Pro or or even an iPhone (both of which apparently sound better than this one according to him and his recording lol)

    noah.lach -

    My guess is that they expect media professionals (the obvious target market) to be using their own audio interfaces, probably attached via USB or Thunderbolt.

    Which is perfectly understandable, since most people running a desktop system (who care about sound quality) typically use external speakers anyway. My home Mac (a 2012 mini and its predecessor, a 2002 PowerMac) is connected to a Klipsch ProMedia 2.1 system and I wouldn’t have it any other way. As far as I’m concerned, Apple could get rid of the built-in speaker altogether on their desktop systems.

    shamino -

  12. Mac Pro 2019 Teardown: step 14, image 1 of 2 Mac Pro 2019 Teardown: step 14, image 2 of 2
    • Although the power button itself gets nifty pogo pins, the breakout board it's mounted to is one of the only things actually connected via physical cables. But it's dispatched easily enough, clearing a path to the logic board.

    • Finally, we slide the logic board out of its natural habitat.

    • Even by tower PC standards, this board is huge—reminding us more of an Xbox board than ye olde 2013 Mac Pro.

    JHL7540 two port Titan Ridge Thunderbolt 3 controller in the top middle. There should be another one on the I/O card.

    Joseph van Tunen - Reply

    Y’all forgot to mention the AirPort chipset, etc? They did some interesting routing of the WiFi/Bluetooth antenna cables…

    ryanwgregg - Reply

    Hey ryanwgregg,

    We may do a teardown update on the WiFi/Bluetooth card.

    They definitely did some creative routing for the wireless cables! In order to get good wireless reception through the pretty solid aluminum enclosure, they routed the cables to the top of the case right underneath both handles. The antennas are covered by plastic inserts there, which allows the Mac Pro good reception.

    Arthur Shi -


    Yes would really love to see a teardown update on the wireless / wifi card. I'm very into privacy and when receiving my mac pro would really want to disconnect and remove wifi / bluetooth as much as possible. With old macs the wireless card was removable. I understand here it's not, though it on a breakout board like this gives me hope, perhaps for some government customers or some special requirements labs they will release a version with a different breakout i/o top card without the wireless capabilities. In the meantime the first thing I'd do would be to disconnect these antennas which would at least significantly reduce the reception (curious as to how much), and I'd want to plan better to significantly via hardware disable that wireless chipset even if it means possibly some soldering. A better look at that setup would really help plan that out and decrease likelihood of breaking something.

    jeyalo - Reply

    Any additional details on that Wifi chipset and if you are able to remove it? Still can’t find anything about it anywhere.

    Juan Delouis - Reply

    Yes, as noted elsewhere in this thread a number of times, you can disconnect the cable for the WiFi/BT (AirPort Extreme (0x14E4, 0x7BF) for the Wi-Fi and a Broadcom 4364B3 chip for Bluetooth) on the daughterboard. You have to leave the daughterboard in place as it hosts the power button.

    frederico -

  13. Mac Pro 2019 Teardown: step 15, image 1 of 2 Mac Pro 2019 Teardown: step 15, image 2 of 2
    • Our base model may look a bit bare, but there's still plenty of silicon on this massive slab:

    • 2x aQuantia AQtion AQC107-B1-C multi-gigabit ethernet controller

    • 2x Diodes Incorporated PI3DBS16 PCIe Thunderbolt 3 signal mux

    • Pericom (acquired by Diodes Incorporated) P17C9X PCIe packet switch

    • TPS 51980A TI 921 A57R buck converter

    • PLX Technology PEX8798-AB80B1 G 1907 CB007158 TA1BAN, probably a PCIe switch

    • 3x Primarion (acquired by Infineon) PXE1610CDN, most likely PMIC

    The P17C9X is more likely a PI7C9X7952 PCI Express Dual UART I/O Bridge (supporting two 16C950 UARTs with baud rate up to 15 Mbps). Basically, serial ports. I don’t know what it would be for though. It should appear in IORegistryExplorer and lspci output because it’s a PCIe device.

    Joseph van Tunen - Reply

    I second that motion. PI7C9X7952 all the way.

    repoman27 -

    Bluetooth module probably has a UART interface, but I can’t recall ever seeing this type of I/O bridge in previous Apple designs.

    repoman27 -

    The UARTs are between the two MPX slots, so maybe the MPX slots have UART lines for serial port communication?

    We could open a terminal, start talking, and see if anything responds.

    There are Bluetooth serial drivers so that could be it too. The serial driver is probably Apple16X50Serial.kext. Bluetooth UART driver is IOBluetoothHostControllerUARTTransport.kext. If the device is not matched by Bluetooth, then the normal serial driver will handle it probably.

    Joseph van Tunen -

    Where’s the PI3DBS16? I don’t see the orange square.

    Joseph van Tunen - Reply

    The PEX8798 could be a PEX8796 (the picture is unclear). The number should match the PCIe product ID found in IORegistryExplorer or lspci output. Apple probably labels the slots in the I/O registry so it should be easy to discover how the 96 lanes are divided but you may need to populate each slot to be sure (the MPX part of a slot for the GPU Thunderbolt controllers might not be labeled?).

    Joseph van Tunen - Reply

    It’s a Broadcom/Avago/PLX/whatever they’re calling themselves these days PEX 8796 96-lane, 24-port PCIe Gen3 switch. Pretty heavy-duty. They’re running it with dual upstream x16 links to the CPU, and the bandwidth allocation to the downstream ports is configurable via the Expansion Slot Utility.

    repoman27 -

    OWC has a much clearer picture of the PEX8796 in its 2019 Mac Pro teardown.

    Joseph van Tunen -

    Dual upstream? I’ve never seen that before. Are the slots divided between each upstream? I guess a single 96 takes less space and is less expensive than two 48. Does this have anything to do with the two pools of bandwidth configured in the PCI Expansion Utility - maybe we can see slots switch between upstream ports depending on whether pool A or pool B is selected? Wouldn’t that cause NVRAM variables saved per card to be wrong when the device path of the card changes? I guess it doesn’t matter - that is behavior that has to be handled in a normal Mac when PCI cards are changed around physically.

    Joseph van Tunen - Reply

    The 8796 lets you create “two separate virtual hierarchies”, and I’m pretty sure that’s exactly what pool A and B are. I’d reckon a restart might be required after making any changes in that utility.

    repoman27 -

    I wonder if an x32 link would be superior to a dual x16? No matter, the 8796 only allows up to x16 links. I don’t know about the CPU…

    Joseph van Tunen -

    Xeon W=32xx CPUs have 64 PCIe lanes, 32 of which are connected to the 96-lane PEX8796. That leaves 32 lanes from the CPU, 64 lanes from the PEX8796, and 20 from the C621 PCH for downstream devices. Here’s my best guess as to the PCIe lane distribution:

    PEX x4 dual-port Thunderbolt 3 (Intel JHL7540)

    PCH x1 802.11ac Wi-Fi (Broadcom)

    PEX x4 PCIe slot 8 / Apple I/O card dual-port Thunderbolt 3 (Intel JHL7540)

    PEX x8 PCIe slot 7

    PEX x8 PCIe slot 6

    PEX x16 PCIe slot 5

    PEX x8 shared + x8 PCIe slot 4 (MPX bay 2, upper slot)

    PEX x8 shared MPX slot 2 (MPX bay 2, proprietary slot)

    CPU x16 PCIe slot 3 (MPX bay 2, lower slot)

    PEX x8 shared PCIe slot 2 (MPX bay 1, upper slot)

    PEX x8 shared MPX slot 1 (MPX bay 1, proprietary slot)

    CPU x16 PCIe slot 1 (MPX bay 1, lower slot)

    CPU 2x x16 96-lane PCIe 3.0 switch (Broadcom PEX8796)

    PCH x1 dual-UART (Pericom PI7C9X7952)

    PCH x4 T2 (Apple)

    PCH x4 NBASE-T 10GbE NIC 1 (Aquantia AQC107)

    PCH x4 NBASE-T 10GbE NIC 2 (Aquantia AQC107)

    repoman27 - Reply

    6 remaining on the PCH for miscellaneous items?

    Joseph van Tunen - Reply

    Yeah, but you only have a DMI 3.0 x4 uplink to the CPU, which is being oversubscribed to the tune of 2.7:1 or something like that. And the SSD controller in the T2 is perfectly capable of saturating that link all on its own.

    repoman27 -

    Did some one identify the Bluetooth and Wi-Fi card in Mapro

    Theetech - Reply

    Step 14 has a picture of the PCB for the top power button and top Thunderbolt ports. The WiFi/Bluetooth is probably under the flat flexible cable.

    Joseph van Tunen -

  14. Mac Pro 2019 Teardown: step 16, image 1 of 2 Mac Pro 2019 Teardown: step 16, image 2 of 2
    • To continue, flip to Side B:

    • Apple APL1027 339S00606 T2 coprocessor

    • Apple 338S00342-A0 (likely Apple PMIC)

    • Intel C621 Chipset

    • 6x Diodes Incorporated PI3DBS16 PCIe Thunderbolt 3 Signal Mux

    • 10x Diodes Incorporated PI3EQX8904 PCIe ReDriver

    • 2x Diodes Incorporated PI3PCIE3242A PCIe switch, and 2x Diodes Incorporated PI3PCIE3442A PCIe switch

    • NXP L6524 general purpose I/O expander

    You list the PI3DBS16 on both sides of the board but neither are circled, and I’m pretty sure you mean 8 not 6 for the quantity. Also, what are the markings on the MegaChips ICs in between the first two PCIe slots?

    repoman27 - Reply

    The MegaChips ICs (on the left side above the T2 chip, and on the right between the PCIe slots) are all marked MegaChips MCDP6100C1 1849A905ES. It’s possible they’re USB-C repeaters, like the MCDP6000.

    Adam O'Camb -

    Thanks, Adam. I’d wager they’re serving as DisplayPort 1.4 retimers. And I can see now that there are 2x PI3DBS16412 on the other side of the board and 6x on this side.

    repoman27 -

    The components circled in dark blue need some revision. Working from right to left starting closest to the PCH you have a pair of 30-contact TQFN packages, then a pair of 40-contact TQFN packages, and finally eight 42-contact TQFN packages. All of them look to be from Diodes Inc. / Pericom, but none of them are the PI3PCIE2215 which you linked to and comes in a 28-contact package. They may all have part numbers that start with PI3PCIE, but they aren’t 2215s.

    repoman27 - Reply

    Thanks for pointing that out, I updated the bullet with a corrected link.

    Adam O'Camb -

    Thanks again, Adam. Although that works for the two 30-contact chips, there’s still 10 more there (the next set of two and then the group of eight) that we don’t have part numbers for. And might I suggest linking to the manufacturer’s site rather than Sorry to be such a pain!

    repoman27 -

    No problem at all! We don’t always have space in the teardown to list all the chips so I’m always happy to answer more specific questions. I also noticed I made a mistake with one of the model numbers which is corrected now. So the pair of 30-contact chips are 3242AZLE, the pair of 40-contact chips are 3442AZLE (added that to the last bullet), the four right 42-contact chips are P13WVR 13612ZLE Z1912GG, and the four left 42-contact chips are PI3DBS 16413ZHE 1907GG.

    Adam O'Camb -

    The P13WVR is probably PI3WVR13612 (the 1 is an I - the same mistake as for the PI7C9X7952 in the previous picture). I guess these are for switching the 8 DisplayPort connections of the two MPX slots between the four inputs of the two Thunderbolt controllers (top Thunderbolt controller and I/O card Thunderbolt controller). I don’t know what the circuit diagram would look like - if Apple doesn’t allow a lone MPX module in bay 2 then I think 6 DisplayPort switches would be required but if Apple allowed a 4 DisplayPort MPX module in bay 2 then 10 would be required. But there’s only 4?

    The PI3DBS16413 are used for PCIe? I don’t think they’d be used for Thunderbolt if the I/O card and GPUs have their own Thunderbolt controllers?

    I think we need pictures of the MPX modules, I/O card, and the top PCB.

    Joseph van Tunen -

    That whole cluster of components bounded by the coin-cell battery on the left, PCH on the right, and MPX slots on top and bottom are for DisplayPort switching. There are 2 MPX slots, each of which can provide 0, 2, or 4 DP sources which need to be routed to 2 Thunderbolt controllers, each with 2 DP sinks. The first two sources from each MPX slot go to the four PI3WVR13612 for a 1:2 demux, the latter two go to a pair of 2x2 matrix switches (PI3PCIE3442A for the main links and PI3PCIE3242A for the AUX channels). The 12 outputs are connected to the four 3:1 muxes (PI3DBS16413) with their outputs routed to the four MegaChips MCDP6100C1 DP 1.4 retimers and then on to the Thunderbolt controllers. I’d reckon the smaller components include four 3:1 single channel muxes for the AUX channels and four basic 3:1 muxes for the HPD lines. There should also be a couple 2x2 switches in there somewhere for the HPD lines.

    repoman27 -

    The PI3PCIE3242A and PI3PCIE3442A are 8 Gbps (PCIe gen 3). Are they good enough for DisplayPort 1.4 (8.1 Gbps)? They have applications for DisplayPort 1.2 (5.4 Gbps) and USB 3.0 (5 Gbps) but don’t mention DisplayPort 1.4.

    Also, what about muxes to switch PCIe lanes between the Thunderbolt controllers (two per MPX slot; x4 PCIe lanes per Thunderbolt controller) and the slots 2 and 4 ? Or are those PCIe lanes independent (which would be a waste of lanes)?

    Joseph van Tunen - Reply

    I’m sure the signal integrity is just fine at 8.1 GT/s, but Apple is probably the only company crazy enough to use these parts for DisplayPort seeing as they really aren’t designed for it (no included AUX or HPD support). I guess discrete DP 2x2 matrix switches aren’t really a thing, so Apple just went with what was available off-the-shelf due to this being a relatively low-volume product.

    I posted my best estimation of the PCIe lane allocation in the comment thread for the other side of the logic board. Slots 2 and 4 both share 8 lanes from the PEX8796 with the proprietary side of the MPX slots by way of the 8 PI3DBS16412 muxes (6 on this side of the board, 2 on the other).

    repoman27 -

    8 of the PI3EQX8904 2-lane linear redrivers are being used to redrive the 16 PCIe Gen3 lanes routed from the CPU to PCIe Slot 1 at the bottom of the board, and the other 2 are redriving the 4 PCIe Gen3 lanes headed to the built-in Thunderbolt 3 controller at the top of the case.

    repoman27 - Reply

    It appears that the CPU slot has bent pins! Upper right corner of the socket.

    matthewknice - Reply

    Also I noticed no mention of the Wi-Fi or Bluetooth modules…..where are they in this machine? Are they upgradable or soldered like my 16” MacBook Pro?

    matthewknice - Reply

    What about the random USB port or two SATA connections? What are they used for?

    Tim - Reply

    As well discussed already, and enumerated on Apple’s site, the USB 3.0 port is intended for software license dongles (for pros to better keep them from being easily stolen from an external port), but you are free to install anything you want that is USB-compatible; flash or SSD (with adapters), etc… As for the two SATA, also well-discussed that it (and the mini-10-pin power header) are currently filled with the optional Promise J2i dual-HDD carrier. You can expect more drive carrier options for far less money, and able to hold more drives. Already new owners are 3D-printing (and sharing) custom drive carriers.

    I will be building my own drive carrier from steel to host three 3.5” HDD and twelve 2.5” SSD and attached RAID card, which will migrate from my current MP. I might use the two included SATA ports for a couple spare SSD for clones or scratch; and I will probably run the USB3 port to a spare PCIe gate and make it available for external use.


    frederico -

  15. Mac Pro 2019 Teardown: step 17, image 1 of 1
    • The new Mac Pro is a Fixmas miracle: beautiful, amazingly well put together, and a masterclass in repairability.

    • We love that a good portion of the modules can be swapped without tools; we love the use of (mostly) standard screws and connectors; we love the step numbers and diagrams for certain repairs right on the device; and most of all, we love the free public repair manuals and videos.

    • Despite the many things to love, however, Apple still keeps the keys to certain repairs, like the proprietary SSD. And some of Apple’s repair manuals include (or entirely comprise) a disclaimer insisting that you contact an Apple Authorized Service Provider, when in reality the repair could easily be done at your desk.

    • With 2019 in our rearview, we’re starting to wonder: maybe Microsoft and Apple aren’t making devices more repairable just for fun (or for us)—maybe those Right to Repair bills are starting to look seriously scary?

    • Motivations and quibbles aside, this is without a doubt the most repairable Apple product in recent memory. Let's give it a score.

  16. Final Thoughts
    • The opening procedure couldn’t be easier.
    • Basic repairs and upgrades can be performed with standard tools or even no tools at all.
    • Major components are highly modular and use industry-standard sockets and interfaces, making replacements and upgrades a snap.
    • Apple provides some step numbers and diagrams right on the device, and publishes free repair manuals for some repairs to help you get it right.
    • The SSD cards are modular, but custom-made by Apple, complicating replacement.
    • If you need a replacement part that’s not on Apple’s limited list of approved repairs, you’ll likely pay a dizzying price—if you can find them at all.
    Repairability Score
    Repairability 9 out of 10
    (10 is easiest to repair)


Is it possible to upgrade processor after buying the computer?

And, Is it possible to use RAM from any manufacturer or we have to use Apple’s RAM modules?

Brais Nóvoa Loira - Reply

We haven’t tested them yet, but to all appearances: Yes to processor upgrades, and yes to RAM upgrades. Both are modular, socketed, standard components.

Jeff Suovanen -

Yes! 9to5mac already tested it. Here’s the video:

Gilmar Pelegrini Jr. -

@Gilmer Pelegrini, Jr - 9to5Mac only did RAM…CPU should be straight forward but good luck finding a W-3275M, W-3265M or W-3245(M).

ryanwgregg -

I’ve been wondering the same! Has it been confirmed that the Xeons from the Mac Pro are the W-32XXM series? I have a W-3175X and I’m curious if it would work. It still uses the Intel C621 chipset found on these boards.


@TJM - The socket has the same number of pins, but the TDP of the W-3175X is 50 W higher and it only supports 48 PCIe lanes vs. 64 for the W-32xx SKUs. So I’m guessing that would probably be a no-go, mostly due to the TDP.

repoman27 -

Does it look like DDR3 RAM could be compatible also?

Strongroom assistants -

@ Strongroom assistants - No DDR3. DDR4 ECC RDIMMs or LRDIMMs only.

repoman27 -

I bought an 8 core and tried to upgrade to 24 core with a W-3265.

Unfortunately it recognises only the original 8 but it works. Anybody an Idea how to fix that?

What is the difference between W-3265 and W-3265M? Obviously there is a big price gap!

maclab_1 -

Can you elaborate more about the WiFi/Bluetooth part for this Mac Pro?

Is the wifi/bt chipset (and which one?) integrated in the boards?

good best - Reply

The WiFi/Bluetooth are located on the power button board. It appears the antennas are somewhere within the top part of the frame. See Step 13, first picture. You can see the antenna wires on the left side and the WiFi/Bluetooth hiding under the large ribbon cable.

ryanwgregg -

How do you use the internal sata ports, is there a power connector, and if so, what type of cable does it need?

Jason Kenney - Reply

If you’re interested in rolling your own, here’s the correct connector ( )

frederico -

I think your last point is not fair. They really did make a great design this time. There are tons of 3rd party parts for it and compatible with it already. It is not fair to give it a lower score because of that reason. It is actually much easier to repair than all standard towers and PCs I ever worked on. It deserves a 10/10.

Robin Conradi - Reply

The SSD issue alone is a single point lost, IMO

ryancoleman -

If the SSDs fail you cannot repair it, replace it, or do anything other than return it. That’s two points in my book, but I still bought one.

Robert -

Absolutely not. Proprietary SSD that’s linked to the T2 security chip, so not only do you HAVE to buy the new SSD from Apple if you want/need to change it out, but you also have to have the repair done by an Apple technician because of the security chip. Should’ve lost multiple points for that. 7/10 would be a fair score.

jmdunk -

Nicely done teardown, I’ve been waiting to see the internals of the Mac Pro like this! I do feel however that your teardown’s nowadays they aren’t very detailed and in depth. You guys missed some parts that could be very interesting to see in more detail, like: Tri case fans, blower fan, heatsink, PCIe retention mechanism, top handle locking mechanism, GPU module, etc.

Just some thoughts.

zai fuchigami - Reply

I agree and second this request

Bob -

I agree and third this request. This teardown is great but I was hoping to see more details around CPU, CPU cooling, and PSU.


May the fourth be with you.

Vaibhav Nath -

Thank you, Jeff, for your answer

Brais Nóvoa Loira - Reply

Would you say it’s possible to add a larger SSD (NVMe) to a PCI slot and use that as the start up?

Chris Bamford - Reply

Most likely. Just like how previous Mac Pros can boot from NVMe, either internally (2010 Mac Pro, 2013 Mac Pro), or externally (2013 Mac Pro via Thunderbolt).

Joseph van Tunen -

Will you test if one could buy the base model and put the 28 core xeon in?

Meaning the “cheaper” 1TB W-3275 Processor. Not the way more expensive W variant for 2TB of RAM Apple would use.

ChrisCarneval - Reply

Being that the W-3275 maxes out at 1TB of RAM, it can be assumed that Apple already uses the W-3275M to reach 1.5TB of RAM. One will need to test the 28-core with 256GB and 128GB RAM modules to verify that the Mac Pro (2019) supports 2TB on the W-3275M, W-3265M and W-3245M.

ryanwgregg -

Will you guys take apart the MPX modules? (Can we use the passive heatsinks for similar Radeon cards?) Can you show us how the Intel C621 heatsink is attached?

Jonatan van der Horst - Reply

Pretty sure the heatsink is on the PEX 8796 PCIe switch, not the C621 PCH. That PCIe switch is a beast—typical power = 18.6 W!

repoman27 -

sorry then the system SSD cannot be changed?

dsign.daniele - Reply

Only by Apple or an authorized service provider.

repoman27 -

It is physically replaceable, but my understanding is this can only be done by an authorized service provider. Not yet sure if that is a technical limitation. I would love to see more detail on this.

Does it accept exactly the same flash boards as the iMac Pro, or are these a new version?

What happens if you take a unit with the default 256 GB drive (as we see above, comprised of one board) and add another 256 GB board?

What if you take a unit with two boards and remove one board? At a minimum, it would require reformatting, since half the data would be gone, but does it work after formatting?

Can you run two boards of different capacities (256 GB and 512 GB, for example)? This can probably only be answered after the question about adding a second board to a unit which shipped with only one.

Zimmie -

The Mac Pro’s “SSD” can be changed, but they are not standard off-the-shelf M.2 SSDs. At a base level, off-the-shelf SSDs contain flash chips and a controller chip. The Mac Pro “SSD”s have memory chips but no controller—the T2 chip on the motherboard handles all that. The recent iMac Pro also use these controller-less SSDs. We plan to do some parts swapping and testing at some point!

Arthur Shi -

Where is the PSU in the final shot? Can you post more pics of the PSU? It looks like it’s dually cooled from both the bottom front fan and the blower on the back.

Colin Stalter - Reply

Hi Colin,

You are right! The front blower channels air into the PSU module, which also has a side port that is directly connected to the blower fan.

Arthur Shi -

Yeah that shot is missing many parts.

Bob -

Also, this confirms that the Mac Pro is using PCIe Gen 4, which is great!

Colin Stalter - Reply


I read that they will still use PCIe3 in their website. So, are the slots PCIe 4 compatible?

Brais Nóvoa Loira -

The mux/switch supports PCI3 Gen4 does not necessarily mean the platform is using PCIe Gen4.

What’s more, Intel CPUs currently does not support PCIe Gen4 at all.

Orange Chen -

The Xeon platform used is limited to PCI-E 3.0

tipoo -

Well at the end of the day, Apple is at least shown themselves able to make a computer that can be taken to the bits and bodged back together without breaking anything that was still working. Bravo for that bit at least, keep it up.

Towers is where their powermacs to mac pro’s got their status originally.

Ana E - Reply

Can you please also teardown the Afterburner accelerator card in the future?

Yuedong Lv - Reply

Pardon my lapse in spatial reasoning, but how is it that the RAM slots and PCIe slots are on opposite sides of the motherboard in the step 14 and 15 photos, yet are all accessed from the same side of the computer when the case is removed?

David Boroditsky - Reply

Hey David!

The RAM and PCIe slots are indeed on opposite sides of the motherboard—you can’t access them from the same side when the case is removed.

Arthur Shi -

Best comment. “The new Mac Pro is a Fixmas miracle”

C.J. Land - Reply

So by the looks of it, the dual CPU socket model is a different motherboard. Can we have a teardown of the dual socket model?

aku017 - Reply

We don’t because we don’t have a dual socket model.

Orange Chen -

There is no dual-socket model of the Mac Pro (2019). The Xeon W-32xx platform is 1S only.

repoman27 -

Oh wait, you’re correct. My mind was stuck in the 2012 cheesegrater design.

aku017 -

That said, there are plenty of other ways to add storage, so it's not a total loss!

Can you elaborate on how users can add more storage as well as detailing the QTY of drives, form factor, etc?

Jeff S - Reply

Hey Jeff!

Apple's primary options are the 32TB RAID MPX module, which would connect via PCIe. You can also purchase the internal storage enclosure (with 8TB hard drive), which allows you to mount two standard drives and connects to the internal SATA ports. Finally, you can use external drives.

Arthur Shi -

Has anyone given any thought to whether this could run a Type 1 hypervisor? That would then allow VMs running any OS, including Mac OS, to be run. The T2 allows only Mac OS or W10, which will rule out ESXi (and other linux-based hypervisors) from running on the default storage, but possibly would allow Hyper-V Server / Server core (if these use the same certificate as W10 - I don’t know)?

Alternately, boot drives connected to the SATA ports or a RAID card in one of the PCI slots (which would possible also allow ESXi, etc)?

Anyone investigated yet?


David - Reply

One thing that’s curious is that Apple lists almost twice the cache of the 28 core Xeon W than Intel does, 68MB vs 38 iirc. Is this a semicustom part? Do other Xeon Ws work as drop in upgrades?

tipoo - Reply

Apple is adding the 28MB L2$ and 38.5MB L3$ together for 66.5MB total. It’s a little goofy.

repoman27 -

Ah, is that it? If they’re going to do hyjinx like that they should be listing which cache level, as Intels ARK doesn’t’ do that.

tipoo -

So 1 point comes off from having a proprietary SSD, but no points come off from having proprietary motherboard and proprietary power supply? Makes sense.

Doc Brown - Reply

I guess a lot of systems from various manufacturers have proprietary PSUs and motherboards, whereas apart from Apple most of them use standard SSDs which are widely available from third-party suppliers.

David -

But from repairability viewpoint this is bad because the standard parts (CPU and RAM) are the parts that are least likely to fail, whereas the parts that might fail (motherboard, power supply, etc) most are all proprietary and difficult or impossible to get.

Doc Brown -

You used american cheese in the video. European cheese has different consistency and would likely work better for grating.

James Hetfield - Reply

I’ve been waiting for this teardown for a long time! THANK YOU IFIXIT!

Ethan Zuo - Reply

I would need to sell a kidney to return back to the Apple environment for my workstation. Thanks, but no thanks.

jmillerdesign - Reply

Repairability is useless when all the components are proprietary. Apple will charge a fortune for them.

jhjh - Reply

This Mac Pro is more repairable than this teardown is detailed.

Please do a more thorough and in-depth teardown showing details of all the different parts.

Bob - Reply

Can you elaborate more of the SSD’s being non-repairable? They look at a glance like regular m.2 drives, albeit with some kind of custom housing.

If the only issue is support for the T2 chip, you can disable boot restrictions by starting in recovery mode and using the Startup Security tool from utilities, which allows booting from external drives, so maybe this would do the same for non-Apple SSD modules?

Haravikk - Reply

They provided a link to the iMac Pro teardown, where they describe the following: “Unlike a standard SSD, which has the controller logic onboard, these raw flash modules only have an interface buffer—the PCIe/NVMe controller lies elsewhere.” I believe the controller is part of the Apple T2 chip.

Robert -

The HDMI outputs/connectors are on the separate Video card? Will you do a teardown of that also?

Gerard Pasman - Reply

Two SSD modules in RAID?

Peter Gamble - Reply

I’m expecting RAID-0, fast and efficient, but no redundancy.

Robert -

No, there are two slots for the proprietary modules that contain the NAND flash packages, but only one SSD controller (the T2 chip) located on the logic board. However, all SSDs use controllers that support multiple channels which can connect to multiple NAND packages containing multiple dies in order to leverage parallelism and increase performance. That’s one of the reasons they’re so dang fast.

repoman27 -

Probably the highest repairability score among Apple’s product.

Ryang Sohn - Reply

With that T2 chip inside they can block any product from working, any moment after an update… goodluck with that. See whats happening with the new iPhones…!

schietkop -

Will buy once the base config is 1TB

matt leaf - Reply

Man apple should make epyc base mac pro

alditjahjadi - Reply

Let’s say I use boot amp and slap a nvidia 2080 ti and game with it. Where does the power come from. I see a extra slot behind the lower PCIe(s). Going to have to make my own….

mike c - Reply

There are four 8-pin and one 6-pin PCIe AUX power headers on the board to the left of the PCIe slots for use with non-MPX cards.

repoman27 -

You would need something like this, or third party alternative for 1/3 of the cost:

The connectors look very standard so it shouldn’t cost much to make, but in typical Apple fashion the officially sanctioned kit’s price is set to unapologetically profitable level.

Doc Brown -

Can the 580X be installed in an external enclosure and used as an eGPU? Does it contain the second set of pins that the Vega II MPX module does or is it basically just standard pcie card in a fancy enclosure?

georgebrooksphoto - Reply

Not without an adapter that no-one has invented yet. The second set of pins has four DisplayPort outputs from the 580X and it contains PCIe auxiliary power (takes the place of 6 pin or 8 pin power connectors). It seems like an adapter wouldn’t be too difficult to make to deliver power and extract the DisplayPort outputs (otherwise the card can only connect two HDMI 2.0 displays).

Those pins on the Vega II have only two DisplayPort outputs. They also have two PCIe 3.0 x4 links for the Thunderbolt controllers in the MPX module.

Those pins on the Vega II Duo are the same as with the Vega II but have four DisplayPort outputs like the 580X.

Joseph van Tunen -

Can I use any PCIe SSD instead of the original SSD?

Adrian Leung - Reply

Probably. You may need to enable external booting if you want to boot from it.

Joseph van Tunen -

Can I put one or two Radeon VII to replace the 580 that come with it?

Adrian Leung - Reply

Probably. You just need to add power cables.

Your Thunderbolt ports won’t be able to connect a Thunderbolt display though. Not unless someone makes an adapter that can pipe up to four DisplayPort signals from the GPU into the extended MPX slot connector.

Joseph van Tunen -

where is the psu in the last photo

hocti - Reply

Is there enough space to add a HDD or two and connect it to an internal PCIe card?

Julian Satran - Reply

You can buy an enclosure (comes with an 8TB drive):

Or you can try to make one yourself (but I’m not sure where you would get power from).

Joseph van Tunen -

There is an MPX RAID module available from Promise.

And there are also 2 internal SATA 6Gb/s ports and what looks to be a Molex Micro-Fit 3.0, dual-row, 10-pin, vertical power header. Third party drive cages and cable kits are a little thin on the ground here at launch time (basically just the Promise Pegasus J2i), but I imagine iFixit, OWC, and other vendors will be all over it before too long.

repoman27 -

Do a tear down of the pro display XDR

AbdulHaseeb Amir - Reply

So my old 2010 MacPro has 4 HD slots. If I upgrade, how do I connect my old disks, and what i/o speed can I expect?

James Rome - Reply

Pick up a cheap internal 2 port PCIe SATA card, along with the two included internal SATA and get better (SATA III 6Gbps) top end speed than your existing cMP SATA II ports (assuming your drives saturate the bus), and roll your own drive cage or wait for less expensive third party solutions, or pay a crazy high price for the Promise 32TB RAID MPX module. plenty of good hardware RAID 0 cards for small change will let you stripe four or more HDD for even better speeds. Here’s the power connector you need for your own cable, if you can’t wait for third party makers. ( )

frederico -

Just because of that %#*@ T2 Chip this thing should have a 0 repair-ability score!

schietkop - Reply

Surprised that you have it a 9/10 with the SSD being:

A. a proprietary design with few (or zero) third party options for purchase

B. Tied together with the T2 chip making user replacement impossible

jmdunk - Reply

Better necessarily implies different. Apple sought to build a better SSD, and in many ways they did. If you don’t want to leverage the increased security, excellent performance, and higher capacity options that the T2 enables, you don’t have to use it. Buy the base 256 GB model and just treat it as a recovery drive. This box has 8 standard PCIe Gen3 slots, 2 standard SATA 6Gb/s ports, and an internal USB 3.0 Type-A port. You can use any bog standard M.2, HHHL PCIe, 2.5” or 3.5” SATA, or USB drive you like as an internal boot drive.

The T2 based SSDs provide an excellent user experience and have demonstrated high reliability. If you need to replace one or want to upgrade, you’ll need to contact Apple or an Apple Authorized Service Provider. There are 506 Apple store locations worldwide and more than 1800 AASPs in the US alone.

There’s valuing repairability, and then there’s prioritizing it above all else. I think iFixit’s assessment in this case was reasonably balanced.

repoman27 -

Welcome to the comment thread, to the apple employee who replied to me.

Honestly, you think quoting the number of Apple stores that exist in the US is a valid rebuttal to a clear example of anti-self-repair gatekeeping by Apple? Get lost with that. What are you even doing on this website?

jmdunk -

Excuse me Sir. May I Can Disasembly The airport(wifi-bluetooth)CARD? Is airport card are On-boarded?

I Must extract The airport card for my work space.


glen bonded - Reply

The Mac Pro Has The SAS PORT?

glen bonded - Reply

No, 2x SATA 6Gb/s. You can always add a SAS host adapter card though.

repoman27 -

Thank you! good x-mas and present!

glen bonded -

Wazaaaaaaaaa !!!


A giant leap above the iMac Pro, which represents a monument to style over function — my iMP self-immolated after just over 18 months, with all the files on the SSD lost when the power supply blew, taking other components with it. Shameful for a >$5000 product. The new MacPro is reminiscent of its hefty predecessors — FIXABLE!!!

pwsloss - Reply

What’s really driving me nuts here is storage. I need to add more SSD capacity beyond 4TB, it’s perfectly fine if it’s not secure/encrypted and, at the moment, there’s no clear path to doing that. I don’t want platters, other than for backup so they do not need to be an overpriced 7200rpm RAID. Yes there’s always external but given all the space within the unit, which is the purpose of the unit, that would be silly to have to resort to.

I presume this stuff will come, but the uncertainty of that has me nervous. Why should that need to be a third party kludge in the first place to get 8-10TB of SSD internal?

biomuse - Reply

It’s not going to be that hard, just at this moment, choices are limited, but I fully expect commercial solutions will start arriving soon now that the whole of the aftermarket beyond Promise has access to the machine. If you’re desperate to add larger SSD storage now, you have several choices; the Promise J2i and R4i will provide power and standard 3.5” drive bays, wherein you can install 2.5” SSD with adapters. Next you can choose PCIe NVMe adapters/controllers, with 1 to 4 slots (starting at $20 and up to $500-$800; storage not included), allowing you to install way faster SSD storage than Apple is providing, for far less money. Or you can do what I’m going to do at first, which is to install my RocketRAID 840A (16ch SAS/SATA) and hang my 12 2.5” SSD on a homemade bracket in the upper bay where the J2i is meant to go, giving me 20TB of faster-than-OEM storage. Only other thing I have to do is add a 12v-5v adapter to power the drives, assuming I can’t just hack the existing 10-pin SATA power connector.

frederico -

Found the connector for the SATA power header ( )

frederico -

Can’t even grate cheese that well. Failed at its main function. Incredibly dissapointed, Apple. /s

Ethan Zuo - Reply

Is there any additional hard drive slots to add drives to this machine?

Michael Inman - Reply

No. Hard drive slots would look ugly and some people don’t need them, so Apple left them out. The only two options currently are:

“Promise Pegasus R4i 32TB RAID MPX Module for Mac Pro”

“Promise Pegasus J2i 8TB Internal Storage Enclosure for Mac Pro”

You can buy a PCIe card to add NVMe drives.

Only the J2i has the Mac Pro SATA power cable that you would need for other SATA drives - or maybe you could combine one of the cables from the “Belkin AUX Power Cable Kit for Mac Pro” with some kind of 12V to SATA power adapter (12V 5V 3.3V) - or maybe the proprietary Mac Pro power connector for the SATA power cable has a standard connector and you can make your own cable?

Maybe other options will exist in the future for cables and drive bays.

Joseph van Tunen -

Here’s the connector you need to create a 12v/5v/3.3v power cable for SATA drives (; make your own drive cage or wait for the aftermarket to offer something more useful and less costly than the J2i. I’m building my own for twelve 2.5” SSD for an RR840A RAID 0 adapter..

frederico -

Will it be possible to upgrade from the base processor to the 28 core processor? Or is it a different motherboard?

volkangela - Reply

Why did you guys removed all the detailed informations about the thunderbolt card/chipsets Used/Wifi Bluetooth info etc etc ?

DSM2 Hackintosh - Reply

Check the History (under Options, top right corner of the web page). Was information about Thunderbolt, WiFi, Bluetooth ever added? I don’t think so. It probably should have though.

There is a picture of the Thunderbolt controller for the top Thunderbolt ports. It’s clear enough to read the part number.

Joseph van Tunen -

After pulling out the motherboard, it looks like there’s a chassis board still in place (used for mounting the various components). Is that removable, leaving just the empty space frame (tubing, top, and bottom)? Perhaps you could add a couple pictures of what the final empty chassis looks like. If that chassis board is removable it’d be nice to have some pictures of it as well. (I’m looking towards the future. My suspicion is that if Apple respins various components, they’ll reuse the space frame, possibly with a different chassis board. And think of all the people who have repurposed old PowerMac or Mac Pro enclosures.)

Tim Thomas - Reply

You don’t do teardowns on desktops or tower PCs very often, but have there been any (other than the previous Mac Pro) with lower repairability ratings? I thought this modular design was standard on all but the smallest form factor PCs. The repairability of this box is arguably a 9 by notebook standards, but seems average by tower PC standards.

Dan Watts - Reply

Which type of Wi-Fi chip is this?

124991438 - Reply

If it actually graded cheese it would rate a 10/10

neilrush - Reply

Does the power “pogo pins” actually provide/cut power or just keep the power button from working?

Zeos - Reply

Absolutely cuts power. You can “fool” the pins and controller, however, to temporarily fire the beast sans cover. Not advised for long at all though.

frederico -

I just noticed the new GPU teardown. Thank you so much! Happy holidays!

Ethan Zuo - Reply

May you detail on the I/O card, please

Acosta - Reply

Where's the thunderbolt 3 header (titan ridge?)

Acosta - Reply

If there are Thunderbolt 3 header connections, then they must be in the I/O card slot and the MPX module slot.

Joseph van Tunen -

How to physically disable and get rid of Bluetooth an WiFi components?

Yahli Telem - Reply

They seem to be located on the upper daughter board hosting the power ON/OFF relay and pogo pins; probably not going to be super easy to do much beyond disconnecting the antennae. Unfortunately, no one has yet posted an image of both sides of said card, so we just don’t know if the Broadcom chip is soldered or on an M.2-style adapter. However, there may be a special build SKU for government and corporate where WiFi/BT would not be allowed, so possibly one could swap out the whole daughter card for one sans those components.

frederico -

Could someone please verify that the extra four power headers on the main board (those intended to power video and other PCIe) are truly proprietary? The Belkin AUX Power cable images on the Apple Store aren’t super clear, but they look like standard eight pin locking connectors to me.

it irks me to pay $67 for $10 worth of everyday cables (notwithstanding most will go unused in a drawer).

Plenty of discussion that the SATA power header is a custom ten pin part (though it only uses eight contacts ( 4 by 4), and you have to buy an incredibly overpriced bracket and super noisy drive in a size you probably don’t want, just to obtain the $5 custom cable for pre-regulated SATA power.

frederico - Reply

What does a non-proprietary 6 pin or 8 pin PCIe power connector look like? As for as I know, only the GPU end of the cable is non-proprietary. PSU manufacturers use different pinouts for the PSU end of the cable even if the connectors are the same. Even PSUs from the same manufacturer can have different pin outs for the PCIe power cables.

Joseph van Tunen -

That has not been my experience at all. MOBO headers and PSU 6 and 8 pin outputs are wired according to standards, just as are SATA/PATA/USB etc.. If a given PSU or MOBO manufacturer decided to swap pins around at the board level, when you installed a universal 8-8 or 8-6 or 6-8 connector, you could fry whatever component you attached it to.

e.g., this commonly available cable (an absolute ripoff at $12 because it lists as being specific to Mac Pro) is plug and play on *any* MOBO or PSU with standard 8 or mini-6 pin headers: ( )

frederico -

More typical is two for $8 (and most often even less than that): ( )

So, yeah, the Belkin pack is nicely black, probably the right length and of good quality, but if I only need one, I’m getting royally shafted.

frederico -

I’m not sure you’ve shown non-proprietary-ness yet.

First you linked a cable for a Power Mac or Mac Pro which is Apple specific. Maybe you want the 2019 Mac Pro to have connectors like the classic Mac Pro? But maybe the classic Mac Pro’s connectors were not enough for 8 pin PCIe power (150W each). Possibly the onboard 6 pin connector of the 2019 Mac Pro is the same as the classic Mac Pro.

Then you linked a PCIe extension cable which is only for extending PCIe power cables. Maybe you want the 2019 Mac Pro to have male PCIe power connectors on the motherboard instead of the female connectors.

Yes, it’s annoying that the Belkin package comes with cables you don’t need. But it’s like any modular PSU you might buy for a PC build.

Joseph van Tunen -

I linked to the Mac Pro mini-6-8 pin to prove a point that Mac-labeled parts are automatically overpriced. I’m sorry I linked to the second in a hurry and didn’t select the correct board-header option; they are in the same ballpark price. Generally you seem to be deliberately obstinate to the larger point that no one should have to pay $67 for two, let alone just one (usable) cable. It is no problem to find good quality 18/16g cables capable of over 300w, or you just build one if you buy the header connectors blank. If it matters to you, add black braid cable sheath for $0.50. If the connector on the MOBO isn’t proprietary, I promise you I won’t be paying $67 gouge tax to install a video card. But, hey, thanks for obfuscating the actual question with your opinion.

To that end, does anyone have a factual answer to my question? Are the PCIe headers on 2019 MP proprietary? Or do they accept any available molex header connectors for custom builds? I just need a good image of the headers (1/2, 3/4, 5/6), pls/thx!

frederico -

For anyone else playing along, if you look closely at the only image of the board-end of the Belkin cables, the fifth cable looks pretty much like a mini-6 to 6 (probably for MOBO header 5/6), & the other five look like a mini-8 to 6/8, which may or may not be proprietary. It won’t be impossible to hack whatever is required once pinouts are verified, but it would be nice to use standard parts.

frederico -

FWIW, hopefully it’s this brand new part number in the Molex MiniFit Jr. line: ( ); the MiniFit 6 has been available for years. Even if the keys are different, they can be modified as long as the overall profile is correct. The voltage on the pinouts will be easy enough to verify once a fit is achieved.

frederico -

For those still playing along, OWC Kindly acknowledged a request for more details with a detailed image of the power headers (in the comments), along with other gorgeous component shots in the article itself) ( )

It’s looking very good for a simple install using the above-linked mini-8 Molex connector, so screw Belkin. I’ve ordered and will report here confirmation of a fit.

frederico -

Link spam robot denied my post confirming that the OWC teardown page and comment thread has images confirming it looks to be a mini-8 Molex connector on MOBO headers 1/2 & 3/4, and that the mini-6 Molex definitely fits header 5/6. Excellent news, so screw Belkin. I have ordered mine and will confirm fit here later.

frederico -

Would like to know which part on your website include all devices and the real cost of it.

Ayman El-Badry - Reply

Can you link the correct board-header option?

I didn't say the connectors were proprietary. You can buy the connectors that will fit and make your own cable. I am saying that the connections to the connector (pin out or wiring) is proprietary. The only part that is not proprietary is the PCIe 6 pin or 8 pin (GPU) end of the cable.

Joseph van Tunen - Reply

how long does it take to do this?

Tom - Cartoon - Reply

Why not try a WowWee CHiP and WowWee MiPosaur Teardown? These are toys which have a lot of screws, and only require Phillips screwdrivers!

Michael Deitz - Reply

Will we have a teardown on Pro Display XDR Stand? I am really looking forward to looking into the mechanics of the support structure

Ume Nishikino - Reply

San you tell what power in Watts / Amps and Voltage does the 10 pin connector next to the SATA disks supply.

I found a lot of info and specs about the 6 & 8 pin connectors for the auxiliary power of the PCIe cards, but there is no information about that connector what power and from there how much disks would it be able to supply?

hyatanasov - Reply

It has 12V and 5V but no 3.3V. I don’t think there’s any way to know Watts except to load the system up until it stops. Hopefully it powers off before something melts. At least you shouldn’t exceed the amps allowed by the individual wires connected to the 10 pin connector.

Joseph van Tunen -

I am just pondering how to fit this in a very height restricted space - I am therefore wondering if the chrome metal top handles are in any way removable?

It looks very much like they are not - they seem to pass directly through the machined aluminium part and down to the base and I cannot see how they would be loosened - the only thing making me hold out hope is that it would be a complex manufacturing process to have to bend these metal bars after passing them through the aluminium part…. but this is apple, so…

Dylan Evans - Reply

No, you can’t remove the handles, which are part of the frame; but you can remove the feet, and perhaps replace them with something shallow, yet safe. OWC has a better teardown showing how to remove them.



frederico -

Sorry for the misinformation; it is indeed possible to remove the handles in the same manner as the feet.

frederico -

I’m wondering how did they make a case (the grater), jut look at the seam, there are no screws, did they really use glue to bond metals?

Froust Xatashi - Reply

No, no glue at all; like most metals, seams of aluminum can be easily welded using heat. Aluminum is typically bonded using electrical current, rather than open flame or ignition of high-heat mediums (such as magnesium) also using electrical current. The two surfaces are pressed together, and an extremely high current flow is generated across them at given points, creating a sufficiently high enough temperature to melt at the point(s) of contact, most directly in line with the electrical current supply points. Then the electrical current is cut, and the liquefied metals quickly cool and leave behind a now-hardened molten weld point, that is generally quite permanent and only an equal or greater amount of heat can separate. HTH

frederico -

Does anyone know if the Apple I/O card has impact on the top USB-C ports? My top USB ports stopped working and only provide power now. Trying to trace where the fault is.

Richard Plom - Reply

Which dimensions are the fans? Are they made directly by Apple?

Which wattage is the PSU? Is it made directly by Apple?


Max Musso - Reply

Also do the Fans and PSU have part numbers? Are they both replaceable? Any dimensions or pictures for both?

Thanks for your time and great work to the team for all your work.

Apro11 -

If you click on the images of this step, you can view large photos of the fans. Both the front array and blower fans are made by Nidec, and the model numbers are printed on the label.

Arthur Shi -

Any information on the power supply? e.g. picture, size, dimensions, connector type or part number.

Apro11 - Reply

You can see the power supply module in the 3rd picture of this step. It connects to the motherboard via what looks to be a proprietary socket. There no other connectors from the power supply—all power is routed through the motherboard.

Arthur Shi -

Hi, my friend scratched his Mac Pro case/shell. Do you know if you can buy replacements? thanks! Neal

Neal Walter - Reply

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