Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Weird iMac G5 screen blocks
- Thread starter G5owner12
- Start date
- Sort by reaction score
That looks like a bad graphics card BGA. 
. That's a bummer. Usually caps have other shapes and other symptoms such as freezing, KPs, windows sticking after moving. If the only thing it's doing is weird colors, I'm gonna say the graphics BGA unfortunately. PM me if you have any more questions.
. That's a bummer. Usually caps have other shapes and other symptoms such as freezing, KPs, windows sticking after moving. If the only thing it's doing is weird colors, I'm gonna say the graphics BGA unfortunately. PM me if you have any more questions.
I had exactly the same problem on our iMac G5 ALS 20 inch just recently. I couldn't explain how the problem came about as it came literally out of nowhere. Unfortunately this seems to be the price for all in one designs - the heat becomes too much with time and the graphic chip gets fried.
I decided to sell it off fast and still cash in on while it still booted up.
I decided to sell it off fast and still cash in on while it still booted up.
The iMac G5's are plagued with issues, and the failure of the GPU comes as no surprise for somebody who's worked on so many of these.
To repair this machine, it will require replacing the motherboard. Personally, it'd be far more economical and feasible to just buy a new machine than go through the trouble. Luckily, though, transferring all of your data to a new Mac would be as simple as connecting a FireWire cable and using Target Disk Mode.
To repair this machine, it will require replacing the motherboard. Personally, it'd be far more economical and feasible to just buy a new machine than go through the trouble. Luckily, though, transferring all of your data to a new Mac would be as simple as connecting a FireWire cable and using Target Disk Mode.