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Hi there, if I replace the video card which is 256mb with a 512mb will I have any issues? Thanks
Here are the P/N’s for the different graphics cards: 661-5539 - ATI Radeon HD 4670 (256MB)661-5546 - ATI Radeon HD 5670 (512MB) If you use a real Apple GC you’ll have no problems. If you use something other than Apple’s part you’ll need to burn the Apple firmware onto the card with is not easy!
Hi, In iMac 21,5" mid 2010, the video card is soldered on the motherboard. So, you have a problem unless you change the motherboard that has a 512mb video card. If you made, take good mother card the same year as yours and you should have no problem.
Hello, will it work the other way? Changing a burned 512 Mb by 256 Mb?
