random BSOD's/game freezes. certain hardware/graphic card related

[fezbombmatt]

Still not had an error, but you did say yourself it wasnt Norton causing the second.

Ive just had a random shutdown, as if i pressed the button myself but i didnt press a thing. No error mesages.

 

[fezbombmatt]

Hi again, had a bsod just while running Prime95 in blend mode. Came up with BAD_POOL_HEADER.
Prime95 said 'fatal error rounding was 0.5' and then 'Hardware failure' afterwords.

Already mentioned i have ran Memtest on this machine, hopefully the dump might say something.
Cheers