It almost sounds like a bad driver or bad power supply. I have had issues with computers and it does the hanging stuff, and it is because the power supply can’t keep up or going bad. Have you run test on it?
The MB could also be the cause, but it shouldn’t wait 3 weeks before you see it again.
Have you tried just a BIOS clear and see if that fixes it?
RAM may also be the cause this too…
Do a search online for Hirens Boot CD and that will have some Hardware test on it to narrow it down.
Kyle
