Windows 7: System freeze problem!

It seems that when I use an OS newer then XP 32-64bit, my pc crashes randomly. Tried Vista 32-64bit, same problem, Windows 7 32-64bit still occuring. I beleive I found in the admin tools that the Kernel/Power keeps failing. Does anyone know a way to find out if that is really the problem and what can I do to solve the problem. Ran memory Diagnostics and found nothing. Also ram is all the same 1GB sticks of memory. So if there is a way to scan my system for problems or what ever can be done to find the problem. Thanks for any help.

Also tryed to wait it out but nothing would come back, it really locks up.

id get rid of the overclocking on the cpu and try

Ok, I figured it out, my core voltage was to high, it was set on auto select. So I manually set it to 1.275v from 1.36v+. cuased a lot of problems aswell. My pc runs cooler and a little faster, I don't know why I didn't do that ealier, but the cpuz help me understand what was going on when I loaded.

Check your motherboard for bad, leaky capacitors. I had the same error in the logs and random reboots. Replaced my board and system runs perfect now. Hopefully it's not that, but worth a look.

I removed my motherboard this month and cleaned it and found no hardware defects or problems with capacitors on the north bus area around proc. All is in good shape still. Also I'm running a 90nm amd dual core proc. so it makes it more difficult to work with!