<< p4-2.4@1.8A? >>
Hey, that is backass backwards....what are you underclocking a 2.4ghz for???
Try stating it as P4 1.8a@2.4ghz....
I like to run prime95 for 12 hours minimum, then encode a full multiple pass divx movie....looping 3dmark2k1 as well as in conjunction with above is also a good stress test...