回答“Can the graphics card of the 24" iMac be upgraded?”Ok, so I hear conflicting stories about whether you can or cannot upgrade an early 2008 24" iMac's GPU. Assuming you can, is the 8800 the limit? Mine has recently worn out. I hear the 8800 is now known for wearing out quickly and getting heat damage. Either I get Apple to repair it or do it myself (as my AppleCare has run out) but I don't want another NVidia GeForce 8800 in there due to its known faults.
回答“images appearing on screen and locking up Imac G5”Same for me. Somehow it works in Safe Mode but not the fully booted mode. It's probably because Quartz is disabled, but is Quartz using another part of the card which is damaged? Must be, I suppose. The thing is, if you are in Safe Mode then try restarting, sometimes I can't boot back into Safe Mode again because it doesn't even get that far. Makes me think that there is a temperature issue too.
回答“checkerboard fuzzy screen then freezes”So is it worth spending the £400 / $500 to fix it or do people recommend getting a new iMac model that hopefully won't suffer from these problems in the future?