I have a 2011 27" iMac i7 3.4GHz 12,2 which I want to put a Metal AMD GPU into so I can upgrade the OS with OCLP.
I'm very comfortable mechanically and I have stripped out the machine several times before to upgrade the HDD and SSD, as well as bake the old GPU (HD6970M) when its failed over the years. What I can't do is flash the bios etc. of the new GPU once I've bought it from eBay or wherever. There are some WX4150 cards on eBay that claim to come pre flashed for Mac, but who knows if this is true. I would rather buy an unflashed WX4170 or 7100 for the same price and get some more life out of the old girl if possible. Can anyone help to do the bios in London, or recommend a place that will do this service? I've neither the tools or the wherewithal sadly.
Many thanks!
I'm very comfortable mechanically and I have stripped out the machine several times before to upgrade the HDD and SSD, as well as bake the old GPU (HD6970M) when its failed over the years. What I can't do is flash the bios etc. of the new GPU once I've bought it from eBay or wherever. There are some WX4150 cards on eBay that claim to come pre flashed for Mac, but who knows if this is true. I would rather buy an unflashed WX4170 or 7100 for the same price and get some more life out of the old girl if possible. Can anyone help to do the bios in London, or recommend a place that will do this service? I've neither the tools or the wherewithal sadly.
Many thanks!