AMD 64 athlon x2 4400 2.4 Ghz Dual Core
4GB Corsair DDR2 800 (PC2 6400)
EVGA nVidia 9800 GTX+
450W Corsair psu
nforce 430 mobo
350 GB SATA HD
Vista Home Premium 32
I've run memtest86, all is well. Temperatures are right where they should be. It almost seems like a driver issue, but Ive downloaded all the most recent patches for the games and the most recent video card and mobo controllers, but no luck.
It also did this prior to me upgrading from the integrated geforce 6100, 1GB ram, and 250W no-name psu.
On a side note, the games Ive tried are COD 5, Assasins Creed, Oblivion, Fallout 3, C&C3, and Black & White 2. All crash religiously within 5-15 minutes, except B&W2 which at max settings and game version 1.0 us fairly stable [1-2 crashes to desktop an hour]. Dont know if that info helps.
Thanks for any insights!