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crwdns2944351:0crwdnd2944351:0iMac Intel 27" EMC 2374, AMD Radeon HD 4850 Video Card Removal & Repaircrwdnd2944351:0crwdne2944351:0

crwdns2933797:0James Wagescrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 James Wages

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iMac Intel 27" EMC 2309 and 2374
Type
replacement
Thing
AMD Radeon HD 4850 Video Card
Title
iMac Intel 27" EMC 2374, AMD Radeon HD 4850 Video Card Removal & Repair
Introduction
This video guide shows how to disassemble the iMac in order to remove and repair the video card, then reassemble and test. As shown in the video, it is highly recommended to label all connectors to make them easier to reconnect without error.
Time Required Min
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Time Required Max
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Imageid
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Objectid

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Difficulty
Difficult
Conclusion
Not for the faint of heart and recommended only for someone who has a full day free and isn't afraid to tinker. Since the 2009 iMac is out of warranty and non-functional with a problematic video card, there isn't much to lose by attempting a video card repair. And while I cannot guarantee the "oven bake" method will work in every case, it did work in mine and in the case of many other people whose stories I have read online. Indeed those stories were inspiration for me to attempt the same repair. Even if one does not wish to repair the video card, this video still shows how to remove the logic board and video card and put them back in place.
Author
James Wages
Public
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crwdns2943215:0crwdne2943215:0

  • TR10 Torx Security Screwdriver x1 added.
  • Phillips Head Screwdriver: Size PH1 x1 added.
  • Heavy-Duty Suction Cups (Pair) x1 added.
  • Anti-Static Wrist Strap x1 added.
  • Arctic Silver Thermal Paste x1 added.
  • Cotton Swabs Cotton Swabs x10 For removing existing thermal grease added.
  • 99% Isopropyl Alcohol x1 added.
  • Microfiber Cleaning Cloths x1 added.
  • Flashlight x1 added.
  • Sharpie / Sticky notes for labeling x1 added.
  • Dust Blower x1 added.

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  • BR2032 Coin Battery x1 added.

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  • Community-Contributed Guide added.