This is an official Powerbookmedic.com Take Apart Guide for the 27" iMac.

Powerbook Medic

6 days ago
@Luis - we sell the video cards in the parts list to the right and we also offer a component level repair where we can reflow the chips on the card itself. if you would like to learn more about the repair options, you can submit a quote request using the send-in repair option at the top of our site.

Luis

6 days ago
I have a A1312 with problems with the graphic card (Show some dots in pink and change to black and so on) but works fine. It is possible to fix this issue? Can I change the graphic card? Regards...

Mustafa

9 months ago
i have received one A1312 for repairs. there is one beep audio. can u pls suggest technically what to do . also can i get bios bin or fd data. Thanka Mustafa

Powerbook Medic

10 months ago
@CB - it depends which exact model you have. Some were offered with discrete video cards that are replaceable.

CB

9 months ago
Is the video card in replaceable A1312?

Powerbook Medic

10 months ago
@Cesar - we unfortunately do not troubleshoot software issues. You may want to contact your local Apple Store.

Cesar Castelo

10 months ago
I have a problem with my hard drive, when i upgraded to the new OX Yosemite beta release and start working fine but in one of the upgrades it did not finish to download the software and now it only works like it is trying to upgrade but stops and return to start to download but it stops at the middle of the upgrade and stops and keep on doing it again and again, i need to know how you can help me and please replay to my email castelobrw@gmail.com thank you for your suppont and i will be waiting for your answer

Powerbook Medic

11 months ago
@Tim - if you have an upgraded video card it is a separate part. if you go to our Parts By Serial section, you can put in your iMac serial number to get a part list. You'll need to remove everything sitting in front of the logic board to remove it.
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