Chosen Solution
Machine: - 27 inch Mid 2010 / iMac11,3 / A1312 / EMC 2390 / MC784LL/A 2.93GHz i7, Radeon 5750 …I have replaced failed cards in these before, but the price of the one I had been going with before (Radeon 6770M) has been continually increasing, leading me to suspect that it’s a discontinued model now getting scarce. What other options are out there that are compatible with the 2010 iMac listed? Note: this machine will not be used for games, so bleeding edge speed is not necessary. Cost is the primary issue as I simply need to restore the computer to functionality,
Please refer to this: Can you replace the graphics card?
I have had great success using a hot air rework station reflowing these. Here’s what I am using: http://www.ebay.com/itm/2in1-898D-Solder…
