Why the sodding hell is it crashing?

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3 Feb 2009
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The PC in my sig randomly crashes on occasion: and I can't work out why.

Every now and again it will lock up - but it doesn't seem to be related to strain or heat.

Initially the mouse continues to work - although that stops after a few attempts at a ctrl+alt+del (which does nothing). The machine is clearly still working to some extent: my internet is routed through my LAN onto a connectify wireless hotspot in software on the PC, so the fact I'm writing this proves it's still whirring away in some way. In fact, as I write this it beeped (3 sets of 2 beeps, not a noise I recognise) and opened the ctrl+alt+del interface, and is now working again.

I simply can't see any link though: it doesn't seem to relate to what program is open in the foreground (although I've not tested combinations of background apps), nor as mentioned temperature and stress.

Stumped.
 
Sorry for the slow reply, wanted to be thorough:

Memtest runs fine overnight (both stock and overclocked) - freeze seems to occur equally as often with both, too.
Same effect with three different hard drives
Same effect with any single stick of RAM
Same effect without the GPU (onboard)

I can't think what else would be likely to freeze temporarily: surely the PSU would just shut the thing down, same with CPU? And the PSU would be under a lot less strain with no GPU, so if it's just a voltage/current thing that should sort it.
 
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