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PC power off itself

By choy.waigiat ·
Recently my PC power off by itself out of a sudden. It has happen twice so far. Is it virus? PC problem?
I'm using XP Home SP1.

anyone can advise,

thanks and regards,

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by vcrchet-tech In reply to PC power off itself

Try a few things,
1. There could be a loose connection on your 4 wire power cables. Pull them off your hardrive and any other hardware you may have and make sure they are tight. You can use a pointed tool or small long nose plyers to make the female connection tighter.
2. Be sure to use an anti-static wrist strap & or ground yourself by touching your case, then take out your memory & clean the contacts with a clean lint free napkin or cloth with alcohol.
3. Pull all ribbon cable off & reinstall them.
4. It could also be a loose AC power connection, try changing your power cord.
5. If all else fails you may have a failing Hard Drive! & it's just crashing.
Good Hunting.
Chet

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by Beanmeister In reply to PC power off itself

Another possibility that wasnt mentioned is that either your power supply or CPU could somehow be overheating?
Have come accross that a few times, and found that the power supply fan or CPU is just stuck with so much dust or junk that it doesnt spin properly, leaving the power supply to overheat to a point where it just shuts off...

Check both fans to see if they are working properly, and if either of them is running slow, or not at all, then that could be your problem

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by ozi Eagle In reply to PC power off itself

Hi,
Above is all good advice.
I would also check the CPU heatsink fins for dust. It incredible how much of it builds up in the fins. Clean by blowing out with air (outside as it creates a big cloud which will settle everywhere) or failing the availability of air,carefully remove the fan from the heatsink and use a brush to remove the dust.
The bearings of power supply fans will seize after a couple of years, generally being only a sleeve bearing. Check fan for free rotation, if stiff replace fan, preferably with one with ball bearings.

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by oskiller In reply to PC power off itself

I would also check the power supply and the power that is coming out of the outlet. If you are not running off a UPS, you could be experiencing a power drop - I've had that happen.

I've also seen power supplies that were on their way to failing exhibit the same problems.

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by JamesRL In reply to PC power off itself

There was a virus which caused the system to shut itself down. It would give you a warning that the RPC session would shut the system down in 1 minute - is that what you are seeing? If so, then you need to get an update for your anti-virus software, boot into safe mode and clean it.

James

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