Installing MacBook Unibody Model A1342 Dual Hard Drive

Featured Guide

Featured Guide

This guide has been found to be exceptionally cool by the iFixit staff.

Use this guide to install a second hard drive in place of the optical drive.

There are many benefits to adding a second hard drive to your laptop such as improved speeds, greater storage space, and less heartache when installing new software. Use this guide to install one using our optical bay hard drive enclosure.

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Edit Step 1 Lower Case  ¶ 

  • Remove the eight 4 mm Phillips screws securing the lower case to the MacBook.

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Edit Step 2  ¶ 

  • The lower case is constructed of rubber-coated aluminum. Do not excessively bend the aluminum during removal, as any permanent deformation will cause tolerance issues after reassembly.

  • Slightly lift the lower case near the vent opening.

  • Continue running your fingers between the lower and upper cases until the upper case pops off its retaining clips.

  • The location of these three clips is shown in the third picture.

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Edit Step 3 Battery  ¶ 

  • For precautionary purposes, we advise that you disconnect the battery connector from the logic board to avoid any electrical discharge. This step is optional and is not required.

  • Use the flat end of a spudger to lift the battery connector up out of its socket on the logic board.

  • It may be easier to use your fingernails to lift up on both sides of the connector.

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Edit Step 4 Rear Vent  ¶ 

  • Remove the following screws from the optical drive side of the rear vent:

    • Two 10 mm T8 Torx

    • Two 5.2 mm Phillips

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Edit Step 5  ¶ 

  • Remove the following screws from the port side of rear vent:

    • Two 10 mm T8 Torx

    • Two 5.2 mm Phillips

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Edit Step 6  ¶ 

  • Carefully lift the rear vent out of the upper case.

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Edit Step 7 Optical Drive  ¶ 

  • Remove the single 12 mm Phillips screw securing the top of the rear speaker housing to the upper case.

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Edit Step 8  ¶ 

  • Remove the single 2.2 mm Phillips screw inserted horizontally into the side of the optical drive.

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Edit Step 9  ¶ 

  • Use the flat end of a spudger to pry the AirPort/Bluetooth ribbon cable connector up off the logic board.

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Edit Step 10  ¶ 

  • Use the flat end of a spudger to pry the rear speaker connector up off the logic board.

  • Pry up underneath the wires.

  • This connector is very delicate and easily broken.

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Edit Step 11  ¶ 

  • Carefully rotate the rear speaker assembly (with AirPort/Antenna cables still attached) out of the lower case.

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Edit Step 12  ¶ 

  • Use the flat end of a spudger to pry the optical drive connector up off the logic board.

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Edit Step 13  ¶ 

  • Remove the single 4.5 mm Phillips screw securing the optical drive bracket to the upper case near the fan.

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Edit Step 14  ¶ 

  • Remove the two 2.5 mm Phillips screws securing the optical drive to the upper case near the optical drive opening.

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Edit Step 15  ¶ 

  • Lift the optical drive near its connector and pull it away from the upper case to remove it from the computer.

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Edit Step 16 Optical Drive  ¶ 

  • Pull the optical drive cable connector away from the body of the optical drive.

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Edit Step 17  ¶ 

  • Remove the two black Phillips #0 screws securing the small metal mounting bracket. Transfer this bracket to your new optical drive or hard drive enclosure.

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Edit Step 18 Dual Hard Drive  ¶ 

  • Remove the plastic spacer from the optical bay hard drive enclosure by pressing in on one of the clips on either side and lifting it up and out of the enclosure.

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Edit Step 19  ¶ 

  • Make sure that the hard drive connectors are facing down before placing it into the enclosure.

  • Gently place the hard drive into the enclosure's hard drive slot.

  • While firmly holding the enclosure in place with one hand, use your other hard to press the hard drive into the enclosure connectors.

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Edit Step 20  ¶ 

  • Once the hard drive is snug, reinsert the plastic spacer while holding the hard drive against the bottom of the enclosure.

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Edit Step 21  ¶ 

  • Use two Phillips #1 screws to secure the drive to its enclosure.

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Edit Step 22  ¶ 

  • Attach the optical drive bracket to the new enclosure with two Phillips #0 screws.

  • Reconnect any cables you have removed from the original optical drive onto the optical bay enclosure.

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Edit Step 23  ¶ 

  • Don't ditch that drive! You can still use your optical drive externally with the help of our SATA Optical Drive USB Cable.

  • Align the cable's SATA connector with the drive's port and plug in securely.

  • Plug the USB connector into your laptop and your optical drive is ready for use.

To reassemble your device, follow these instructions in reverse order.

For more information, check out the MacBook Unibody Model A1342 device page.

Required Tools

TR8 Torx Security Screwdriver

$5.95 · 50+ In stock

Spudger

$2.95 · 50+ In stock

T6 Torx Screwdriver

$5.95 · 50+ In stock

T6 Torx Screwdriver

$9.95 · 29 In stock

T6 Torx Screwdriver

$4.95 · 50+ In stock

Related Products

Unibody Laptop Dual Drive

$39.95 · 50+ In stock

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Universal Drive Adapter

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iFixit Lock Pick Set

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Comments Comments are onturn off

when i did i have a gray screen and in the middle i have a question mark in a file and it flashing

Rayan Sait, · Reply

According to this page http://support.apple.com/kb/HT1651?viewl..., the 8 screws are not identical.

Can anybody tell me where each kind of screw is supposed to go?

Gregoire, · Reply

you do not need to remove the battery when replacing the hard drive or ram

brilldoctor, · Reply

beware not to lift the connector to close of the angle, as the picture suggest it. It might broke the angle. Attack by the middle.

naamol, · Reply

Not necessary?

hikkymemo, · Reply

Be careful of the corner of the battery cable connector when trying to pry it off with the spudge. I knocked the corner of mine. No operational impact but was not very pleasing!

jljordanweb, · Reply

Hi, i have an issue with the screw in the middle: it is blocked and the top is now damaged... Any suggestion?

Corrado, · Reply

you can actually stop disassembling now and try to replace it now. after removing two t6 screws it came off pretty easily

grze, · Reply

Good tip, thanks! I skipped ahead to step 17 and had no problem getting the magsafe board out from under the logic board and the new one installed. Saves a lot of work disconnecting connectors indicated as Fragile!

matt15,

Step 10. If you are having difficulty with the small connector, insert something thin and long underneath it (preferably not metal, as you can scratch the motherboard that way). There is some space under it that you can use to get it loose.

Remember, the amount of force required to loosen it is very small. Take a break if necessary if you are getting frustrated.

Stephen Eilert, · Reply

I would recommend not removing this as part of this step. You can easily slide the drive under the speaker wire -- just lift it from the side with two screws carefully.

Matt Mastracci, · Reply

Don't forget to put this connector on the new enclosure!

Gregoire, · Reply

The bay and dvd drive cable at iFixit is $40.00 (http://www.ifixit.com/Apple-Parts/9-5-mm...)

But for $10 more you can get an external casing that will protect your super drive form MCE (http://store.mcetech.com/Merchant2/merch...) A total of $50 dollars. It is what I used and works great and looks pretty and is guaranteed to protect your superdrive. MCE also gives you a disk with software to patch the DVD Player to work with external dvd drives. So For an extra $10 dollars you get better software functionality and a case for your super drive. It works great.

Robert Wacker, · Reply

It is not a good idea to put fast SSDs into the optibay. System tries to negotiate at 6 Gbit, but it fails; disk is recognized but it couldn't even be formatted. I've waisted a lot of time to find a reason. After swapping SSD with original mac's HD both work properly, one at 6, another at 3 Gbit

nicholas, · Reply

No problems here with a Samsung EVO in the optical bay. Only downside that is not really fast (80-90 mb/s) but amazing performances on booting time, shut off and opening programs.

Mike, · Reply

I have to withdraw my comment. It is NOT a good idea to put a SATAIII SSD in the optical bay. It gives random freezes. Swapping it with a HD is indeed better. Better read/writes too. Only downside is that SMS won't work on the optical bay so treat your baby with care. Also Sleep issues might occur when placing a HD in the optical bay (a total freezing system). I already wasted a HD that was in the optical bay.

Mike, · Reply

I've replaced the optibay with a samsung 840 pro but can't format it nor copy files (a few files work) to it. Do you suggest putting the HDD in the optibay instead? Did you clone the HDD to the SSD before swapping them? Will my Mac boot from the HDD the first time I boot even though it's in the optibay? I would really appreciate an answer, I've spent too many hours trying to figure it out!

Carl, · Reply

Also had this same problem. Tried and failed a Samsung firmware upgrade. Ended up send drive back to Amazon.

Andrew,

Okay it seems like some models of MacBook Pro have issues with a fast (6Gbit/s) SSD in the optical bay. Even though my Mac says it offers 6Gbit on both bays it simply didn't work in the optical bay. So I switched places between the two drives and everything seems to work. My Mac booted from the old HDD in optical bay automatically and then I cloned it afterwards and changed the startup disk to the new one. As said before, don't put a fast SSD in the optical bay!

Carl, · Reply

Make sure you have removed the 2 screws at the end of your super driver unit and move it to your NewHD bay with the metal piece eye loop.

Kamiiyu, · Reply

Normally with the HD enclosure there come a set of screws. use these to screw down the HD in the enclosure since you need to flip it up side down to reinstall it into the MBP

Bart, · Reply

Here they picture Crucial as their choice, you can also find some great options at Samsung (it is what I installed and it works just as good if not better than the crucial I installed in my wife's iMac. here is their site http://www.samsung.com/us/computer/solid...

Its just another great option. Also when installing SSDs make sure to enable TRIM support (crashes can and probably will occur if you don't) TRIM enabler is available free and the pro version is $10 http://www.cindori.org/software/trimenab... It is the easiest solution for this issue.

Robert Wacker, · Reply

With the particular drive bay adaptor I used, these attachment screws were already fitted to the adaptor but were found at the sides, not underneath. Indeed, the adaptor had no screw holes on the underside.

jjsanderson, · Reply

At first I couldn't get my machine to even turn on - thought it was the battery connector, but in the end I just had to reset the SMC. (http://support.apple.com/kb/ht3964 - see "Resetting the SMC on portables with a battery you should not remove on your own").

talksrealfast, · Reply

I have the drive installed with this bay, but the drive does not appear in the Disk Utility. I see a 'Nvidia MCP79 AHCI' in the system information, but no drive listed with it. Is there some special driver needed to get the MCP to see the drive?

toddfletcher, · Reply

Replaced the optical with hdd, as well as replaced the hard drive with an ssd. Now I get the circle with a line through it. But, when I hold the option key down, it gives me both hard drives, PLUS, the thumb drive I have in the USB port with a Mountain Lion installer. It even shows the recovery disks, but gives me the circle with the line when I choose one. Any help is appreciated.

claude, · Reply

it does not recognize the hard drive in the enclosure, what should i do?

elvin00, · Reply

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