p95 failing means the computer isnt stable. the time it takes to crash is simply how less than stable it is. some people run prime or occt or linpack (1st 2 now incorporate linpack) for 8 hours and call it a day if it passes.
grats. if you play any games you might want to loop 3dmark 2006 overnight to ensure the system is stable under full load. i know ive gotten CPUs stable but the system crashes when gaming b/c of increased PSU/motherboard load
unfortunately not. OCCT has a gfx card stability test, but i think it relies on CUDA, so only works on nvidia 8600-series cards and newer. also ive never tried it so no clue how effective it is.
OCCT is probably the best all around stability tool. there's 2 methods of testing CPU, the prime 95 25.11+ engine and Intel's Linpack, a power supply load test (extremely heavy), GPU test, and i think one more.
oh i forgot about the Heaven benchmark. i havent tested stability with this (because my OC has been stable for 2 years) but it's the latest and greatest GPU benchmark. »unigine.com/download/ -- Somnambulator - t3h 5133pw41k3r
nice. you could run the OCCT GPU test and the Heaven benchmark without problems. If you're running Vista or Windows 7 you can run Direct-X 10 in Heaven and there may be a way to loop it, i'm not sure. you can run the OCCT tests for a time duration so it's great at testing stability.
with XP you can only run DX 9, so choose that from the heaven benchmark. you need to install Vista or Win7 (preferred) if you want to play supported games in direct-x 10.