bad video card
great. repair guide was accurate and well presented.
1) go slow
2) label all the parts that are removed (screws in baggies, etc)
Replace a Radeon HD 4670 graphics card in a Model A1311 Mid 2010 21.5" iMac.
This graphics card with 256 MB of dedicated GDDR3 memory is originally part of a machine with Apple Order No. MC508LL/A. That machine has a Core i3 3.06 GHz CPU.
This is a used OEM part.
|iMac Intel 21.5" EMC 2389||