[mdlug] computer shutting down

[allen]

And if you've got the case opened, reseat everything: powerplugs, I/O 
connectors, RAM chips, cards, maybe the processor. Take a pipe cleaner 
to the heatsink fins as well.

If you have a spare or can bum a power supply I'd swap the old one out.

Take a close look at the capacitors. Sooner or later electrolytic 
capacitors go bad and they may signal their imminent demise by the tops 
bulging, maybe some leakage.

gib at juno.com wrote:
>  
> Make sure the motherboard is making good contact with the case.  If it can slide around you may be losing the contact.
>
>
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