My radeon 9800 pro has suddenly started malfunctioning really badly. From the start of the windows loading screen, there are artifacts on the screen. When finally the windows loads the screen becomes a total mess (with evenly spaced yellow or red stripes on the screen) and then after a second or two the PC halts with a blank screen.
Booting in the safemode prevents it from halting but the screen is still a real mess.
I have tried everything from reinstalling drivers, directX and overhauling winXP. I have also tried my card on another PC, the whole problem is still there.
Nothing seems to help EXCEPT when I turn down the AGP-aperture-size to 16MB (as opposed to 128MB) (from MoBo BIOS). In which case the computer fails to detect that this is a radeon 9800, some sort of standard graphics drivers are used which i cant seem to find in the device manager's list, there are no artifacts anymore. I can go up to 1280 X 1024 32bit, But the refresh rate is really low and not under my control. I can browse internet but can 't do graphics intensive things at all. I can't also install the new Catalyst (driver) since it says something like "You should install standard VGA drivers before installing catalyst"
Hope this is more than enough detail ... Please Help in terms of "What the [bleep] do I do now ??", thanx
My Graphics card was repaired after an accident which i explained in this thread:
But the card has worked fine after that for three months, infact I was playing Doom 3 and Fifa 2005 on it the night before the morning I switched it on and discovered the problem.
WINXP pro (SP 2) OS
AMD Athlon64 3000+ CPU
MSI K8T Neo FIS2R MoBo
POWERCOLOR Radeon 9800 pro (128MB, 256bit) AGP
KINGSTON 2X512 MB DDR PC400 RAMS
ACBEL 400W PSU