'Random' BSOD, Freezes and resets. Suddenly started.

Ran Prime95 for 8 hours (I fell asleep) in safe mode with no errors.

Any idea what temperature the CPU reached?

Unfortunately not - I can't run the sensor program in safe mode and if I try to boot in normal mode, it'll soon enough BSOD, freeze or reset. I can try and see if it's one of the lucky times that it lasts a long time though.

It's just finishing Memtest now, with 0 errors. About to run the Windows Memory Diagnostics tool.

Let us know what happens with the temperatures running in normal mode if you are able to do so.

I believe there were no memory errors - I stepped away from the computer during the Windows Diagnostic Memory test and by the time I came back it was on the normal enter password screen, frozen. I'll find the log as I can get on.

After resetting I tried to get on normal mode 5 times. 1 time is BSOD, 4 time it froze. All within a few minutes of getting into windows. Usually it lasts longer. This was right after the computer had been on a long time doing the various memory tests.

I'm giving it some time turned off for the moment, to see if that helps.

The most common causes for a computer having problems after being on a while are overheating and memory corruption. Try turning the computer off, unplugging it from the wall, holding down the power button for 30 seconds, plugging it back in, and turning it back on. That will clear any memory corruption. If it still has problems starting, it is probably overheating.

If you have questions about the 30 second power button step, see Use Hard Reset to Resolve Hardware and Software Issues HP Pavilion dv5000 Notebook PC series - HP Customer Care (United States - English) for information about why it works. Holding the power button down with no power supplied to the system closes the circuit and drains any power from capacitors and components.

Were you able to narrow down the cause of your crashes? Did you do any temperature monitoring?