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6970m
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Help Needed: 2011 27" iMac with No Display - GPU Upgrade Dilemma
Hello everyone, I recently inherited a 2011 27-inch iMac that’s giving me some trouble. The screen is completely blank, and I’m only seeing a white screen when I power it on. After doing some research, I found that the AMD Radeon HD 6970M (2GB) GPU is notorious for failing, which I suspect...- marcoco
- Thread
- 2011 27-inch imac 6970m blank non-functional white screen
- Replies: 2
- Forum: Early Intel Macs
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iMac 2011 6970m. How to tell the difference between the 1GB and 2GB visually?
Is there a way to tell the difference between the 1GB version and the 2GB version of the 6970m GPU card in the iMac 2011 27"? The part numbers, 661-5968 and 661-5969 don't seem to be anywhere on the card so if I came across someone selling one of them how could I verify I was getting the right...