Broken Computer

My computer is broken. It's some hardware failure, Vista is so crap the blue screen literally is just a blue screen, doesn't tell me anything. I've only managed to get one minidump out of it and it told me nothing that it's a "hardware failure", but I can't pin it down any more than that as it was only a minidump.

I'm gonna strip it down as I've a feeling it's heat related, seeing as it's at its most stable when it's first turned on. Check the fans, make sure the memory is still seated etc. I may also check in another hard drive and re-install XP just so I have a clean system to diagnose with.

I just bought an engagement ring, I can't afford a new PC as well, not for about another 3 years anyway.