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  1. M

    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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