Beamer wrote on Oct 31, 2011, 11:04:
I have a much larger issue with my system that I still haven't solved. It will reboot every time it goes into a power-saving mode, even if that power-saving mode is just shutting off the monitors. Occasionally it will reboot while I'm using it. It will also occasionally reboot when coming back from sleep mode, assuming it managed to go into it. And these rebooting fits come in for a week or two then disappear for a week or two, but during that week it will also crash when I try to install software.

Baffling. It passes every diagnostic exam. It very rarely gives me a blue screen so I can't check that. I think (but I'm not sure) changing any power options doesn't help, so it may be that it crashes just when it hasn't been used in a while. Having a movie running in the background at all times prevents the crashing entirely. I have no clue if this is motherboard, HDD or video card related. Certain aspects seem to indicate any of the above.