crashing when playing games

[momokabuto]

i just bought this card (Sapphire Ati radeon agp 9600xt 256mb ddr2) last month at low yat , when i playing powerful 3D games such as devil may cry 3, it crashed (BOSD) after a few minutes. my desktop spec is

Intel Pentium 4 2.4GHz
1 x 256MB Infeneon DDR333, 1 x 512MB Twinmos DDR400
1 x Lite-On 16x DVD-ROM
40GB 7200rpm harddisk
Windows XP SP 2
PSU 350Watt

is it my PSU watt too low?
or my gc is overhead?
i already installed the lastest catalyst software n using latest direct x,
but the problems still occoured.

Can anyone help me??

[Echelon]

update windows
run anti virus, turn off while playing games, run trend micro housecall to double check things
run anti-spyware programs, smitrem, smitfraudfix, xcleaner, spybot, a2, ad-aware
run reg and temp file removers, ccleaner and atf cleaner
update bios, update windows
turn off all non-ms services and startup items
switch the memory slots, move ram stick 1 to slot 2, vice versa
just try those things and see if that sloves your issue
and also put the stop error code, ie :0x0000007e
the ultimate fix would be osri, that would fix it no problem