Fabian Ramirez wrote:
Or you can get a flashed PC counterparts of the above listed cards or even a flashed GeForce 7800 GS card off eBay.
Hope this helps.
I would stay far away from a Flashed Radeon 9800 Pro. It would not work in my G5 2x2!
I have just gone through **** trying to figure out my graphics card problem and saw this post from someone on MacInTouch who had the exact problem I had. I thought I would share it in case anyone else is having this problem:
"Jan. 14, 2008
Video Problems
MacInTouch Reader
I'm submitting this with the notion that perhaps it may help someone out. I'm an owner of an original generation PMG5 2x2.0GHz machine. About six months back I started having problems with random freezes of the machine. I would come home and the machine would not wake the displays or if the displays did wake the screensaver that was showing would be frozen. Occasionally it was possible to ssh in to the machine in this state and occasionally it was not.
Poking around in the system logs at some points reported Radeon GPU hangs from the Radeon driver. After lots of hangs and reboots I eventually managed to catch the culprit in action (or lack thereof.) The Radeon 9800 card's fan was occasionally -not- spinning. Needless to say this is an unhealthy condition for this card to be in. I believe this was likely caused by years of dust flowing through the machine (it's just impossible to keep dust out of these things.)
After discovering this (and a failed attempt to procure an ATI X800 replacement with an ADC connector) I decided to replace the fan myself. I used a Zalman GPU fan replacement. In doing this replacement, I found that the original thermal compound between the GPU and fan block had been effective baked to a crisp. After scraping and cleaning this off I was able to apply a new thermal compound and put the new fan assembly in place with little fuss. The only tricky part was connecting it to power. Uncertain if the board's fan power output would work for this fan I instead used a Molex splitter I had laying around to hook it up to the optical drive's power connector.
Months of stability have ensued since. People having system troubles with these older models should check that the fans on their graphics cards are still working solidly. Admittedly this could be tough to check if they're simply spinning slowly instead or the thermal compound has already been baked out of existence, but it's worth checking if it happens to be the issue."
I had a shop remove the fried thermal paste and reseat the heat sink and my G5 works just fine now.
