iFixit - Answers With Device "iMac Intel"

iMac 27" 2017: iMac won't boot after RAM upgrade

Fri, 19 Apr 2024 12:48:24 -0700

I installed 64GB of RAM into my iMac 4 x 16GB

After the upgrade the system fails to boot. I can hear the hard drive, however the screen is off, with the old RAM the iMac works as expected.

I have verified that the RAM is compatible and should work with my iMac.

Any solution to get the iMac to work with the new RAM?

⟐ Commented abril 19, 2024 at 12:48 GMT-7

iMac Intel 27" EMC 2390: SSD compatibility (Thermal Sensor Connector)

Sun, 18 Jul 2021 10:30:45 -0700

I have a 27" i7 iMac that I bought close to two months ago, and I would like to replace the internal HDD with an SSD, and I have a 2.5" to 3.5" form factor converter. The only thing I have noticed is that there is nowhere on the SSD to plug in the Thermal Sensor Connector. Do I just ignore it? Can I?

This is the SSD that I ordered: http://www.newegg.com/Product/Product.as...

I am currently booting off that SSD, which is connected via USB 2.0, and I believe that it's being bottlenecked by USB 2.0.

⟐ Commented julho 18, 2021 at 10:30 GMT-7

iMac Pro: Can the RAM on these computers be upgraded?

Wed, 09 Apr 2025 01:30:56 -0700

The additional cost to get the 128gb of RAM on this system is astronomical. If I buy one with the default 32gb RAM, will I be able to crack this thing open down the road and install 3rd party RAM if I want to expand?

⟐ Answered abril 09, 2025 at 1:30 GMT-7

iMac Intel 27" EMC 2546: How do I replace the stand hinge mechanism?

Tue, 14 Dec 2021 12:22:35 -0700

I need to know, from beginning to finish, how to replace the hinge mechanism on my iMac EMC 2546 (part #923-0313).

⟐ Answer edited dezembro 14, 2021 at 12:22 GMT-7

iMac Intel 21.5" EMC 2389: How can I test the Power Supply (voltage values)?

Fri, 03 Oct 2025 13:40:09 -0700

I have an iMac (Model A1311, EMC: 2389) that won't power up properly. I want to test the power supply but cannot find the output voltage values anywhere on the internet.

I would be happy to post a 'technique' article showing people how to access and test the power supply in this model if someone can help me determine their proper output values.

⟐ Answered outubro 03, 2025 at 13:40 GMT-7

iMac Intel 27" Retina 5K Display 2019: 27” iMac 5K 2019 CPU upgradable Or soldered?

Fri, 21 Jun 2024 21:01:08 -0700

I am looking to buy the 27” iMac 5k 2019 but I can’t find a shred of info on if the CPU is socketed (upgradable) or soldered. Does anyone know?

Thanks! -Zach

⟐ Commented junho 21, 2024 at 21:01 GMT-7

iMac Intel 27" Retina 5k Display: Does iMac accept 64GB of RAM?

Sun, 24 May 2020 20:56:40 -0700

iMac with Retina has 4 SO-DIMM slots. Did you tested it with 8GB SO-DIMM? Does he accept it? 64GB — possible or not?

⟐ Commented maio 24, 2020 at 20:56 GMT-7

iMac Intel 21.5" EMC 2308: Can I upgrade the graphics card on my iMac?

Wed, 09 Oct 2024 04:02:41 -0700

I have a 21.5” iMac, 3.06 GHz Core 2 Duo with a ATI Radeon HD 4670 256MB graphics card.

I was wondering if I can upgrade the graphics card to a more powerful one, maybe to the ATI Radeon HD 4850 graphics with 512MB.

And if so, are there step by step instructions on how to do it?

⟐ Commented outubro 09, 2024 at 4:02 GMT-7

iMac 27" 2017: New iMac 5k 2017 CPU is Upgradable?

Tue, 30 May 2023 09:28:19 -0700

Hey! This Summer i bought a new 2017 5K iMac with a i5 7600k.

So... The New Intel CPU 8700K is now available!

I just want know can I replace my i5 7600k to the new i7 8700k?

Is it possible to upgrade?

Thank You So Much

⟐ Answered maio 30, 2023 at 9:28 GMT-7

iMac Intel 21.5" EMC 2308: Is it possible to update my iMac from HDD to SSD?

Wed, 03 Jun 2020 04:12:13 -0700

My hdd is broken so I have to install a new one. Is it possible to install an SSD, and if it is, how is it done and which brand is optimal?

Best regards from Sweden!

Thomas

⟐ Commented junho 03, 2020 at 4:12 GMT-7

iMac 27" 2017: The New iMac 27" 2017 model can upgrade ram and ssd?

Sat, 20 Apr 2024 14:32:27 -0700

Hi, just wondering the new iMac 27" 2017 model can easy upgrade the ram and ssd hard drive? Think the get the lowest specs and upgrade myself. Got any issue from fusion drive to SSD? Thanks for advice.

But the main point I need the OS & software run it faster instead of need a largest storage. Just wondering is easy to change it to SSD if the specs is Fusion Drive not. Or get the SSD specs is better, so if need to upgrade in future is still feasible.

⟐ Answer edited abril 20, 2024 at 14:32 GMT-7

iMac Intel 27" EMC 2309 and 2374: CPU Fan runs at full speed.

Sat, 06 Dec 2025 05:34:17 -0700

Hi, the CPU fan of my iMac is running at full speed. iStat says it's not running (0rpm). The temperatur sensor is working, my ASP says, that's a problem with the logicboard. Any resets (SMC, PRAM) are done but this problem is still there. I just bought an external fan control but first I want to ask if somebody know the pin assignment of the CPU fan plug.

⟐ Commented dezembro 06, 2025 at 5:34 GMT-7

iMac Intel 21.5" EMC 2638: Power button removal and replacement

Wed, 18 Sep 2024 14:39:13 -0700

Hi,

I snagged the power button cables whilst removing the speaker. The cables have pulled completely out of the power button.

Is it possible to remove the power button and solder the cables back on, if so how do I remove it? Otherwise, what are my options?

Thanks is advance.

⟐ Commented setembro 18, 2024 at 14:39 GMT-7

iMac Intel 27" EMC 2429: iMac keeps randomly restarting

Wed, 25 Dec 2024 14:33:18 -0700

My iMac keeps restarting every time I turn it on. Sometimes it doesn't get to the desktop before restarting and other times it restarts while using it.

I have already replaced the power supply with the same result. I also have tried unplugging both the HDD and the SSD and it still was restarting. I have tried switching out the RAM from another iMac and it still restarts.

When it restarts, it randomly shuts off and then boots again, sometimes over and over.

I have already taken it to an authorized Apple tech, and they told me they could never get it to reboot... the closet Apple Store is over 3 hours away so I am trying to troubleshoot this myself.

Any ideas on what I can try next? Thanks for your help!

⟐ Commented dezembro 25, 2024 at 14:33 GMT-7

iMac Intel 21.5" EMC 2308: Boots up with a black screen

Thu, 06 Jun 2024 07:28:30 -0700

When i boot up my iMac the screen stays black the hard drive is running, makes beeping sound but, screen stays black.

I hooked the iMac to a plasma TV and it worked with no trouble. What is wrong?

This i mac is Model A1311 mid 2010 21.5"

⟐ Commented junho 06, 2024 at 7:28 GMT-7

iMac Intel 20" EMC 2133 and 2210: CPU upgrade 2.0GHz to 2.8Ghz ( C2D Extreme X7900 )

Tue, 18 Jul 2023 19:39:22 -0700

Well, I have an iMac 20'' ( ver. 7,1 - Late 2007 ). My CPU is a T7300 @ 2.0GHz.

Can I upgrade the processor to C2D Extreme X7900 @ 2.8GHz ?

It's all ok! :-)

I work with iMac 8 hours per day and don't have any problem!

It's totally recomended to change the CPU ! I install Lion and works perfectly.

⟐ Commented julho 18, 2023 at 19:39 GMT-7

iMac Intel 20" EMC 2105 and 2118: Random Black screen, Help please

Wed, 29 Jun 2022 10:33:03 -0700

I just got a iMac 20" 2.1GHz (2006) at first it ran well no problems, but now the screen randomly goes black, system still runs just black screen, if left alone it will go to sleep and can be awaken just fine as if nothing happened but later its black again. any advise would be Appreciated

⟐ Answer deleted junho 29, 2022 at 10:33 GMT-7

iMac Intel 21.5" EMC 2428: Can I replace iMac's harddrive with an SSD?

Tue, 23 Mar 2021 01:53:46 -0700

hi everyone!

I'm using an Intel based iMac (Mid-2011 model) 21.5 inch. It comes with a 500GB hard drive (ST3500418AS) and I'd like to replace (not add a new drive by removing the optical disk drive) that drive with an SSD (Samsung 840 EVO-Series 1TB 2.5-Inch SATA III Model #MZ-7TE1T0BW)

SSD link below:

http://amzn.to/1Ea56Ok

the ssd itself is 2.5 inch and I'm going to convert that drive to 3.5 inch drive by using a WD icepack which is sold on amazon.com for about $20 usd

WD Icepack link below:

http://amzn.to/1rITB9O

first I'm going to attach the ssd into the WD icepack and then I'm planning to replace the original HDD that comes with the iMac by installing the SSD.

My questions are:

1. does apple allow 3rd party SSD's for iMac?

2. do I need any additional cable kit?

3. is it enough to change just the drives? (I mean HDD comes with a termal sensor, does the SSD need a termal sensor?)

4. do I need any software after installing the SSD (if possible) to control iMac's fan speed [I heard some people complaining about their fan speeds and the loudness of the fans]

⟐ Commented março 23, 2021 at 1:53 GMT-7

iMac Intel 20" EMC 2133 and 2210: replacing X7900 to T9300 for macOS Sierra install Is it worth it?

Sat, 16 Oct 2021 01:52:48 -0700

I’m wanting people to weigh in on installing macOS Sierra on 20" 2007 iMac. I installed a X7900 in it a few years back, but this CPU doesn't support SSE 4.1 instructions. The T9300 does and should work in this iMac. Same socket and same FSB 800. I’m also upgrading WiFi card to a BCM94360CAX combo card. Using an adapter and U.FL to MHF4 antenna adapters.

Does anyone see any problem with this being able to work after the upgrades are in place?

So with the macOS 10.12.4 beta 1 and beta 2 the iSight camera doesn't work on our 2007 iMacs. It shows up in hardware but won't turn on. I am working on how to fix this.

Also, If you want Night Shift to work on our iMacs you can use clover boot loader with a smbios to trick the iMac into thinking it is a late 2013. You will have to apply a fix for USB because changing it to a late 2013 iMac smbios breaks all but one USB and also bluetooth (which is considered to be on an internal USB port) the patch that I have fixes all this. If anyone is interested let me know and ill make a right up.

I’m thinking of making some videos to post on youtube at my channel Nandor690. I do AppleTV stuff right now but I think I'm going to also get into making videos on hackintoshes and unsupported real Macs as well

I have figured out how to get Night Shift to work natively (Without using clover or doing any crazy hacks). Ill be posting a write up on this thread.

I'm still working on getting iSight working on 10.12.4 beta 1 and 2. Will keep everyone updated.

What I am working on now.

As you know, macOS 10.12.4 comes with the new feature Night Shift. But it doesn't work on our iMacs because they don't support Metal. late 2012 iMac is the first year for that.

I used Clover boot loader to make a smbios for a 2012 iMac and now my iMac thinks its a 2012 and night shift works!

A few draw backs are

2 of the 3 USB ports don’t work
Bluetooth doesn’t work
iSight camera doesn’t work.

I am working on fixes for these now. (Remember, those things don't work because I made my iMac think it is a 2012 instead of a 2007. NOT because I updated to 10.12.4. It is safe to update.

I’ll report back when I have fixes ready. I plan on setting up a couple threads in different forums and will link them here for you guys

⟐ Commented outubro 16, 2021 at 1:52 GMT-7

iMac Intel 27" Retina 5k Display: Glass Over Screen Broken

Tue, 07 Feb 2023 06:14:58 -0700

is it possible to replace protection glass over the screen ?

thanks for answer

⟐ Commented fevereiro 07, 2023 at 6:14 GMT-7