Im having the same problem
Random lockups with hard drive light constantly on. When windows resumes all events are processed in order.. All drivers are up to date thru driver agent. Please help im going nuts. PC worked fine from october till about this april with windows 7- 32 bit then started having these issues. I upgraded to to 7 -64 bit and am still experiencing the same thing.. :sa:
Asus M4A79XTD Evo
TripleCore AMD Phenom II X3 Black Edition 720, 2800 MHz
4gig Mushkin 991659 DDR3 2x2 memory kit
ATI Radeon HD 4870 (1024 MB)
Corsair 650TX P.S.
WD 500GB sata H.D