hi thanks for the replys
my drivers are up to date, also i checked my ram on that chart and it seems that they are the right ram.
also it crashs while doing other things now, eg.
when i try to start up vista and also when i was downloading the other day.
it doesnt seem as theres a pattern, i played crysis for 2 hours yesterday gpu temp was 74c, didnt crash.
then turned off then later that night crashed while on the web?