AMD Radeon HD 6750M 512 MB - Stopped working

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Felsangom Author

Level 1

6 points

AMD Radeon HD 6750M 512 MB - Stopped working

Hi.

My iMac made some strange noises and now, it runs slowly in any game.

I've runned a AHT and got the following code: 4MOT/4/40000002:ODD-143

Anyone know what it means?

Thanks in advance.

Posted on Sep 25, 2013 9:50 AM

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Answer 1

rkaufmann87

Level 10

148,564 points

Sep 25, 2013 9:55 AM in response to Felsangom

Apple doesn't publish those codes, however it clearly means you have had a hardware failure. I'd recommend taking it into your local AASP or Apple Store for repair, if your machine is covered by AppleCare the repair will be paid for by Apple. However if you opted to not take advantage of AppleCare the expense most likely will be yours. One thing to look into is Apple is undergoing a recall on some late 2011 iMac's graphics cards, you can find out about it in several places, here is one article that announces it:

http://9to5mac.com/2013/08/16/apple-opens-graphics-card-replacement-program-for- some-mid-2011-imacs/

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