iFixit - Answers With Device "iMac"

iMac Intel 27" Retina 5k Display: iMac 5K mid 2017のロジックボードの故障(iMac 5K mid 2017 logic board failure)

Sun, 10 May 2026 20:33:53 -0700

現在、imac 5K mid 2017を使っているのですが、usb-cが故障したのでAPPLE正規サービスプロバイダに持ち込んだところ、修理を拒否されてしまいました。

仕方が無いので、自分でロジックボードの交換をしたいのですが、どこでロジックボードを入手することが出来ますか？

中古でも販売していることを見かけることがありませんので

入手手段を教えて頂けますと幸いです。

Currently I am using imac 5K mid 2017, but since usb - c failed, I brought it to an APPLE authorized service provider, but I was refused repair.

Since there is no choice, I want to replace the logic board by myself, where can I get a logic board?

Because I do not see what I sell in second hand

It would be greatly appreciated if you could tell me how to obtain it.

⟐ Answer accepted 5月 10, 2026 at 20:33 GMT-7

iMac M4 24": SSD “configurable”. Can I now upgrade my 512GB iMac to 2TB?

Sat, 08 Aug 2026 03:12:41 -0700

So I have the 512GB new iMac. It’s great, but I’d prefer more SSD space. Can I now swap out the internal SSD for a 2TB one?

⟐ Commented 8月 08, 2026 at 3:12 GMT-7

iMac Intel 27" Retina 5k Display: iMac won't turn on, only LED 1 on, PSU is buzzing

Sun, 02 Aug 2026 12:17:34 -0700

I replaced fusion drive where the SSD part had gone bad with a blade SSD-only setup on my iMac, and when I plugged it back in to test it it was unresponsive. I removed the screen and plugged it in to diagnose the issue. LED #1 is always on when the iMac is plugged in (and stays on for a few seconds after it's unplugged), but I get zero response from the computer when I press the power button. I removed everything except the PSU and logic board and got the same result. The power button looks fine. The PSU quietly buzzes when it's plugged in, making a little medium-pitched sound approximately 30-50 times per second. I don't think that's normal? I flopped the PSU onto the metal chin during disassembly- could that have killed the it? Any answers are appreciated. Here's a picture:

(The right speaker is unplugged, I just decided not to remove it.)

I'm pretty sure it's the PSU, I just want to confirm that it's the problem before I go and order a replacement.

⟐ Answer accepted 8月 02, 2026 at 12:17 GMT-7

iMac Intel 27" EMC 2639: iMac fan stopped working. Replaced it with new but still not working

Thu, 30 Jul 2026 23:53:15 -0700

So i have late 2013 27 inch iMac. The fan stopped spinning. I installed TG Pro and sure enough it was showing 0rpm.

So i bought a new fan and followed iFixit guide to install it but even the new fan is not working.

What could be the issue here?

I read somewhere that cold solder on fan controller(?) might be the issue. I have attached the image below of the fan connector area. Can anyone help me point out what i could do to fix this without having to go to Apple?

Apple HT shows “there maybe a problem with fan PPF003“

⟐ Commented 7月 30, 2026 at 23:53 GMT-7

iMac Intel 24" EMC 2267: could I swap my motherboard

Wed, 29 Jul 2026 19:22:40 -0700

I WANT TO SWAP MY MOTHER BOARD FOR A DIFFRENT ONE SO ITS A Little MORE MORDERN And i do have a 3d printer so imthing i could 3d support brakets and mounts?

⟐ Answer edited 7月 29, 2026 at 19:22 GMT-7

iMac Intel 27" EMC 2546: Why is my iMac Intel 27" startup drive missing?

Tue, 28 Jul 2026 07:50:43 -0700

My 2012 iMac fusion drive stopped loading. In recovery, I can verify the disk but not repair. I can see both drives but can not erase or reformat. Both drive names appear in red. When I attempt to reinstall Catalina I get the message "This disk doesn't use the GUID Partition Table Scheme." It's like the drive disappeared. Has anyone seen this before I may know what my options are? Thank you in advance.

⟐ Answer accepted 7月 28, 2026 at 7:50 GMT-7

iMac Intel 24" EMC 2267: iMac dead. used as a monitor lcd panel

Sat, 25 Jul 2026 05:17:28 -0700

Hello , First sorry for my English . I use google translator to help me :(

I have everything you need (or so I think) to use my imac lcd panel (panel LM240WU2 ( SL) ( B4 ) ) as a monitor for other pc

http://i62.tinypic.com/112e876.jpg

http://i61.tinypic.com/2mwxct2.jpg

also I connect the cable from the inverter to the lcd

this http://i59.tinypic.com/f10dts.jpg to http://i57.tinypic.com/f2itxd.jpg

Connect the power cord from the iMac ( white ) energy to the panel. and I connect the power adapter to the board vga 12V 2A

but does not work , connect via a PC to give vga video signal and does not work

do I wrong ?

Help please :(

⟐ Answer edited 7月 25, 2026 at 5:17 GMT-7

iMac Intel 27" EMC 2546: Replacing logic board in 27” iMac emc 2546

Fri, 24 Jul 2026 12:23:42 -0700

Is there a guide?

⟐ Commented 7月 24, 2026 at 12:23 GMT-7

iMac Intel 21.5" EMC 2428: Alt/Option not opening recovery mode

Fri, 24 Jul 2026 10:34:26 -0700

So I while trying to install Linux Mint on my iMac, I accidentally deleted my Mac OS partition and recovery partition. I want to go back to High Sierra, which I was using before, but was only able to create an El Capitan bootable USB through the official Apple page.

I have now created a flash drive with Mac OS El Capitan on it, but when I start the machine and hold down Alt on my keyboard, it boots straight into Mint and does not let me select the installer USB.

Any idea what's going on?

⟐ Answered 7月 24, 2026 at 10:34 GMT-7

iMac Intel 21.5" EMC 2308: Where do I find a vsync cable for a 21.5” iMac

Mon, 20 Jul 2026 16:54:10 -0700

My vsync cable was mangled and I need a new one but I can only find ones for the 27” does anyone know where I can find the 21.5” cable

⟐ Answered 7月 20, 2026 at 16:54 GMT-7

iMac Intel 27" Retina 5k Display: What is the display connector part on a late-2015 iMac?

Mon, 13 Jul 2026 11:39:57 -0700

I have a late-2015 iMac 5k with a broken display. It looks like the previous owner broke a couple pins on the logic board connector based on the couple missing pins on the original LVDS cable. Even when I connect a working display using a new cable it doesn’t function.

It’s not the display or the cable as I’ve tried both on another iMac 5K.

I’ve seen this (the logic board connector) referred to as a LVDS or a special eDP connector.

*Where can I buy this? And can I find someone to solder/replace it for me?

I’ve also tried reseating the cables with no luck. Is there something else I could try?

It’s one of the i7 models with m395x. I’d hate to junk it.

⟐ Commented 7月 13, 2026 at 11:39 GMT-7

iMac M3 24": 2023 M3 iMac won't turn on. Apple store said it needs new logic board

Fri, 10 Jul 2026 06:49:06 -0700

Is there a way to repair/replace the logic board on my own? I've seen the teardown videos and I'm confident I can perform my own replacement.

⟐ Commented 7月 10, 2026 at 6:49 GMT-7

iMac Intel 21.5" EMC 2638: How to replace the front glass iMac 2013

Thu, 09 Jul 2026 11:04:51 -0700

Hello there! I see a lot of instructions of how to replace the whole display, but how do I replace just the front glass? I have a little crack, but I’m pretty sure the LCD part is fine. Do anybody know? Thanks!

⟐ Commented 7月 09, 2026 at 11:04 GMT-7

iMac Intel 27" EMC 2429: Inverter Board from iMac 27 mid 2010 to iMac 27 mid 2011

Sun, 05 Jul 2026 03:18:20 -0700

Hi. I have an INverter board from an Imac 27 mid 2010 EMC2390, the question is if I can replace the inverter on an iMac mid 2011 with this one. It is compatible? At first sight it looks similar. Thank you

⟐ Answer edited 7月 05, 2026 at 3:18 GMT-7

iMac Intel 21.5" EMC 2308: LCD Backlight not working = solved

Sat, 27 Jun 2026 12:28:13 -0700

Hi,

I have an iMac 2009, 21,5" which has been working well until last week. First there was some flickering and sometimes a black display. Since yesterday the display seems not to work anymore.

I have found the apple technicians guide for this iMac online and tried some of the solutions described there. I did a SMC/PVRAM Reset, but this did not solve the problem.

To determine if it's the gpu I connected an external monitor -> everyhing working fine on the external monitor.

It seems that the LED backlight isn't working anymore, because if you use a flashlight you can see everything on the internal screen.

I asked at a local repair store but they told me (without looking at the device...) that it was either the LCD panel, which would cost almost 500€/650$ to replace or the SATA/Board (Logic board?) which would even be more expensive.

My question is whether it's possible to determine if it is the logic board, ta cable connection, the Backlight controller or the LCD-Panel.

Thanks fpr your answers,

Max

⟐ Commented 6月 27, 2026 at 12:28 GMT-7

iMac Intel 27" EMC 2429: iMac iSight camera to USB Pinout

Mon, 22 Jun 2026 08:01:07 -0700

Hi all,

I deconstructed my iMac and made it into a functioning external monitor after it broke.

I want to re use the iSense camera by making it a USB device. I have heard of people soldering the cables onto a USB for use. The issue is, there is 7 wires and I am not sure which wires to attach to the USB as they only have 4 connections. I have attached an image.

Thanks in advance

⟐ Commented 6月 22, 2026 at 8:01 GMT-7

iMac Intel 21.5" EMC 2428: Can a 21.5" Mid-2011 iMac be upgraded to an i7 2600?

Sun, 14 Jun 2026 02:13:34 -0700

So my iMac is a 21.5" iMac from Mid 2011 with a core i5 2400S as default, now I know you can upgrade it's processor since it's socketed and that's just what I'm going to do.

But what I don't know is if I can only upgrade to a low power chip (S suffix) or if I can upgrade to a full power desktop chip (no suffix). I've seen people upgrade their i5 2400S 27" iMacs to i7 2600, but I've never seen anyone tried a CPU upgrade on a 21.5" imac before let alone the highest end CPU offering from Apple on the 21.5" Mid-2011 iMac is only an i7 2600S.

Now the performance difference between the i7 2600S and i7 2600 is negligible for me, but the problem is I can't souce any i7 2600S but I can fine loads of people selling their i7 2600.

So if anyone can answer, please do as I will apreciate it greatly and if anyone is selling or knows someone who sells an i7 2600S that can ship to Indonesia please answer too. :) Thanks in advance.

⟐ Commented 6月 14, 2026 at 2:13 GMT-7

iMac Intel 21.5" EMC 3068: Will this Adhesive tape hold, or should I reopen it and redo it?

Tue, 09 Jun 2026 01:56:17 -0700

Hello I have ordered the iMac 21,5 2017 HDD replacement kit. I replaced the HDD with a crucial SSD and cleaned off the old adhesive and with isopropal cloths aswell.

Turns out iFixit sent me one too many adhesive stripes of the same type and left the other one out. Iam missing the 02 adhesive strip and have the 01 adhesive strip two times.

I have now cut it in proper form and was wondering if I would have to redo this job once ifixit will provide replacement.

I couldnt leave it open and the glass laying around as I got a little kid at home.

here are some Images:

looking forward to your replies. I really dont want to do this again. It seems like it would only be 2/3% of the adhesive strip missing, I personally think its fine as it will stand on a desk and be rarely touched.

Thanks in advance!

⟐ Commented 6月 09, 2026 at 1:56 GMT-7

iMac Intel 27" EMC 2429: Are there multiple iterations of the 2011 iMac 27in?

Fri, 05 Jun 2026 18:46:38 -0700

I have two 2011 iMacs both 27in, yet I took them apart and the logic board and screen connectors are different. Any ideas on why this is? My screen identifiers are (SD)E3 and (SD)A2 if that helps. They are both A1312 iMac models.

⟐ Edited by author 6月 05, 2026 at 18:46 GMT-7

iMac Intel 27" Retina 5K Display 2019: Connecting new power supply

Wed, 27 May 2026 06:05:17 -0700

I've removed the power supply from this 2019 27 imac and I'm ready to install the new one, there is a cable coming from the power inlet module with an eye connector just beside the bottom upstand right hand side, anybody know where this connects to? is it an earth that is attached to the upstand when screwed in place? Any help would be appreciated, got a pic but can't see how to upload it. Thanks Ted

⟐ Answered 5月 27, 2026 at 6:05 GMT-7