I had disconnected all peripherals and performed SMC reset, still would not boot up. Started up in Single user mode and ran fsck (file system check) with no errors. Created Sierra OSx installed USB stick. Started up in Disk Manager mode and selected USB, Sys HD, Recover 10.12.2 and all resulted in same outcome, white screen after Apple logo and progress bar 1/ 2 way completed.

Removed 2 memory sticks and re-installed top stick in lower bank. Boots up to Apple logo and progress bar 1/2 way but now shuts down!

Started up holding down Ctrl - D (windows keyboard) to run Apple Hardware Test. Ran 2 passes, no problems found.

Started up in Safe Mode. In terminal prompt typed in fsck (file system check). Received the following;

• Checking catalog file
  • Invalid node structure (4,3305)
• The volume System HD could not be verified properly

First, get the name of the partition of the failing volume. You can get it most easily by finding your disk in Disk Utility, selecting your partition (not the drive) and type cmd-i. Look for "Disk Identifier" right at the top.

Then, open up Terminal, and type this:

sudo /sbin/fsck_hfs -yprd /dev/disk5s2

substituting your disk identifier for the one already here. Keep the "/dev/" part. Enter your password, and wait. It may take a while. I have had this fail several times before finally working so its important to keep trying. It's faster than a reformat!!!

If the afflicted disk is your startup disk, you will need to do this in single user mode: restart the computer, hold down Command S, and wait for the terminal window to appear.

⟐ Commented October 18, 2018 at 0:17 MST

⟐ Answer accepted September 30, 2018 at 9:09 MST

⟐ Answer accepted May 04, 2018 at 5:15 MST

⟐ Answer accepted July 24, 2017 at 3:31 MST

from Mac mini Mid 2011 Teardown step 7

⟐ Answer accepted January 01, 2017 at 7:46 MST

I'm attempting to add an SSD to my Late 2012 Mac mini (2.6 GHz Core i7). Everything was going swimmingly (or so I thought... *cue dramatic music*) until the step where I reinstall the hard drive carrier back into the case. It was then that I saw it, sticking out like a sore thumb: a loose... *something*... rolling around in the bottom of the case that I am pretty sure does not belong there. *cue more dramatic music* I think it's a capacitor that I managed to knock off of some board or other as I was disassembling the machine. But don't quote me on that - I'm no electronics expert.

Top view: https://dl.dropboxusercontent.com/u/1698...

Side view: https://dl.dropboxusercontent.com/u/1698...

Bottom view: https://dl.dropboxusercontent.com/u/1698...

I looked carefully at the motherboard and I believe I have found where this part came from. My basis for this guess is because there is a row of similar looking parts (down to the markings on top even) with a conspicuously empty space next to it.

(highlighted in red): https://dl.dropboxusercontent.com/u/1698...

Detail view: https://dl.dropboxusercontent.com/u/1698...

Now fortunately I happen to have a friend with both the skills and the equipment to work with surface mount components like these; however I need to make sure (A) that this part really does come from there, and (B) it is reinstalled properly (I'm guessing this part has some sort of polarity or something, a "right" and a "wrong" way to install them). They appear to have a gray stripe on one side of the part, which seems to indicate that. So I thought "no problem, let me go on to iFixit and take a look at their Mac mini motherboard picture, that would confirm my suspicions and tell me exactly how to reinstall this part!"

My problem is that my board does not look exactly like iFixit's picture of this board: http://d3nevzfk7ii3be.cloudfront.net/igi...

In iFixit's picture, there are indeed four of these components all lined up in the same spot as they are on my board, except that on the iFixit version, the leftmost three parts are installed with the gray band (I think this corresponds to the "polarity" of the part) pointing upwards, and the fourth one has it pointing downwards. Except on my board, it is the *rightmost* three parts that are mounted with the gray band pointing upward.

Now if I were to hazard a guess, then I would guess that I need to install this part in the empty space to the left, with the gray stripe pointing DOWNwards. But I obviously want to be absolutely 100% precise on this.

Sorry for the non-technical language and the general noobish sound to this post. (Remember I am no electronics expert. :) ) And thanks in advance for your help/advice/etc.

⟐ Answered May 08, 2015 at 4:40 MST

⟐ Answer edited July 03, 2018 at 10:29 MST

⟐ Answer accepted February 26, 2014 at 12:24 MST

I originally bought the 840 to install with the fusion and found out it was 2 physical drives after the fact and now I have the 840 pro as a paperweight unless I choose another option.

⟐ Commented August 06, 2013 at 19:18 MST

I have a Mac mini Late 2014, it works fine when im using it but cannot update OS not install new one, each time I try to do it, it comes with up error and points to running diagnostics due to a hardware fault. Ran diagnostics and came back with PPM002 error pointing to an issue with memory module (crappy onboard on this version of Mac mini so can't replace). However when I Run a memory test software like Rember (I've tried a couple of others too) all memory tests come back with no issues. I've attached pics of the diagnostics screen as well as the memory tests.

Any help is appreciated.

⟐ Answered September 11, 2024 at 1:17 MST

⟐ Commented March 08, 2023 at 1:08 MST

1. Do I need to purchase anything besides the 970 Evo Plus (M.2) and related tools make this work?
2. Are there any special steps I need to take before I install the new SSD?
3. Do I install the 970 Evo Plus in the same slot as the original Apple SSD blade location?

⟐ Commented December 15, 2022 at 9:05 MST

⟐ Commented September 22, 2022 at 12:24 MST

I’m looking to upgrade Ram to 64Gb. Should I use two of Single Rank 32Gb (Here) Or Two Dual Rank 32Gb?

which is better to use and why?

Thanks

⟐ Answered October 10, 2020 at 7:21 MST

⟐ Answered June 24, 2020 at 15:15 MST

⟐ Answer deleted August 27, 2018 at 1:53 MST

I'm working on an A1347 820-5509-A Mac Mini. Looking at the system I have see these component are burnt. Can someone tell me which components I need to replace here and where to order them.

• @oldturkey03 I need you sir....
• @reecee i need you sir..

I want to thank everyone. Thank you!

⟐ Answered June 05, 2018 at 4:53 MST

2011 Mac Mini power LED does not turn on.

Everything works fine on it but the front LED does not light up white. Is there a setting for this or could it be a hardware problem?

Thanks for your time.

⟐ Answer deleted February 16, 2017 at 8:49 MST

I also want to know how much space do i have (since this is my first instal and i dont own the mini yet)?

I was thinking about buying an PNY prevail elite 240GB or the new Samsung 840 pro series 256GB would there be enought space to instal them and is that even posible ?

Thanks in advance!

⟐ Answer accepted May 12, 2016 at 19:22 MST

Can I buy all these parts separately? iFixIt, why don't you have a kit like this for seasoned DIYers?

⟐ Answered February 12, 2015 at 16:10 MST