My pc keeps shutting down

August 11, 2011 at 09:36:13
Specs: Windows xp sp2, intel pentium(R) D 2.8ghz
My pc keeps shutting down with no warning. It would boot up no problem, run for anything between 5 - 20 mins or so, then switch off. No warning messages, no restart, no nothing. It doesn't matter what i am doing or which program is running.
I have tried opening it and cleaning the fans and blowing out any build up of dust. Only now it won't even boot up properly. It will go so far, then.......yep......it shuts down!!!!!!
I'm at a complete loss and have tried everything i can think of, but nothing seems to work, please help!!!!!

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#1
August 11, 2011 at 12:51:35
sounds like a overheating problem to me...what happens when you tap f8 and try to get in to safe mode?

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#2
August 12, 2011 at 00:30:44
have already ruled out an overheating problem. Have tried to access safe mode, but it just switches off, sometimes before i even get a chance to see the first screen on start up. Have taken hard drive out and tried it in another base unit, but it will not load windows.Nothing we have tried so far has worked. We have even tried to boot from cd and run a repair on windows, but so far that has proved to be a waste of time. We have tried putting a different hard drive into my own base, but it makes no difference, it still switches off before it can load properly. Is it possible that the motherboard is the cause of the problem & if so, can you give me any tips on how to recover my hard drive. Wiping it and starting again from scratch isn't an option at the moment, as i have to much information on it that i didn't get the chance to back up before it started playing up and i can't replace any of it.
I'm at a total loss:(

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#3
August 12, 2011 at 09:27:20
It could be your ram is faulty...make a memtest cd on another PC:
http://www.memtest86.com/download.html
Pop it into the problem PC and try booting up. Let it run for a few hrs to see if the ram is bad.

Other than that it could be the power supply is going bad.

Did your PC take a hit from lightning or maybe a power surge?

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#4
August 12, 2011 at 10:41:32
I have considered the ram & power unit, but wanted to check other possibly causes before going down that route.
As for your other suggestions, it definitely hasn't been hit by lighting, but a power surge has crossed my mind. Could this cause damage to the hard drive? Another words, could a power surge damage/corrupt the files on the hard drive causing the problems we have trying to boot it from another computer?

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#5
August 12, 2011 at 11:12:38
if there was a power surge, I would suggest physically removing the modem and the ethernet pci card if there is one and then try booting. Those are the 2 that get hit first...see if it runs like that.

Be sure to pull the power plug and then touching the Chassis (grounding yourself) to kill any static charge that might happen when you remove those, so as to save the motherboard.

Some HELP in posting on Computing.net plus free progs and instructions Cheers


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#6
August 12, 2011 at 11:40:12
"as i have to much information on it that i didn't get the chance to back up before it started playing up and i can't replace any of it"

First step, slave the the hard drive to another computer ( you cannot get a HD with XP on, to run as master on a different MB ) & then recover all your important stuff, including emails & address book.

I suspect the power supply. Try another from an old comp. no need to bolt in, just unplug the the suspect one, & plug in the test one. Make sure the test one has the same connector first.


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#7
November 11, 2011 at 00:28:00
it has something to do with the PSU, i had a similar problem before, when i upgraded from 250Watts to 500Watts my PSU, problem never occur again.

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