Doom3 crashing with 9800pro

[Robc1880]

I have the Hercules 9800 pro w/ VGA Silencer rev3 OC'ed to XT speeds and would get artifacts so I downclocked it and they went away. The new issue I'm dealing with is that I want to use some of the Filtering in the game and as soon as I turn it on the game will start to load and then the system just reboots out of no where. Any ideas what would be causing this? Should I just not even try to run any filtering? Thanks in advance.

Xaser 3 case with 420W TT PSU
AXP2500 (11*200 at 1.85v)
9800 Pro 128MB (418/372)
NF7-S v2.0
PDP DDR400 1GB(2-3-2-5)2.6v
Lite-On SOHW-832S
WD 80GB 8mb buffer caviar edition.

 

[folken]

Don't run any filtering on D3. Though it does look nice it will lay the smack down on a 9800pro. If it runs fine w/o it don't bother w/ it.
Are you even able to get to the menus? or does it crash before you even get there. Just run it at medium quality at 1280x1024, it will look fine.

<A HREF="http://www.folken.net/myrig.htm" target="_new">My precious...</A>

 

[Robc1880]

I'm able to get to the menus just fine. It will usually crash while loading the level or just after it has loaded it.

Xaser 3 case with 420W TT PSU
AXP2500 (11*200 at 1.85v)
9800 Pro 128MB (418/372)
NF7-S v2.0
PDP DDR400 1GB(2-3-2-5)2.6v
Lite-On SOHW-832S
WD 80GB 8mb buffer caviar edition.