The warranty on my 27" 2010 iMac runs out in november and I've been thinking about opening it up and upgrading it afterwards. I've been seeing reports of people installing "AMD Radeon HD 6970M 2GB" ...
Well, it looks like my 4 year old iMac's GPU is going out. I'm getting artifact pixilation that matches GPU failure videos and pictures I've seen on the Internet for iMacs. I've cracked open the iMac ...
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