Problem on an old build

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21 Feb 2007
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I've run into a problem today with an old pc build, I've had no problems with it up to this point and it's been running for a good 3+ years.

I was working on the computer when all of sudden it completely cut out, there wasn't a freeze or anything upto it, the computer then rebooted itself automatically, once it rebooted it got into windows without a problem and cut out again after a couple of minutes. I then tried to reboot in safe mode, exactly the same problem, I'm still able to boot into windows but it will eventually cut out, this could be when everything's booted or a couple mins after.

Looking at the bios the temperatures seem to be ok and I haven't touched anything inside the build for a long time.

Now there's one thing I think I should mention, I don't know if it's connected but recently the house has had lot's of work being done on it and I've noticed when some of the saw's are used the lights in my room I'm working in are dimming, is this a surge? My computer doesn't have one of those surge protector blocks, I feel like this being used over the past couple of weeks might have contributed and it's effected my psu, apologies if this sounds dumb

Any help would be appreciated
 
It may be the motherboard, and it may be the surge, if you can go down to your local PC repair store and get them to check it out.
 
many thanks for the reply, If I leave the computer at the bios it doesn't reboot does that help at all? Is there any way I can test it here or could it be anything
 
I don't have a spare psu but I had another build without a psu with almost identical specs, I took my graphics card and psu out and put in that build and it seems to be running without any problems, I tried playing a game that would use some of the psu and no problems again, I guess that would rule out the psu?? Would a motherboard crash the computer as soon as it booted into windows? It would completely cut the power off like someone had pulled the plug out, so confusing! Appreciate the replies
 
Update! I put my pc back together and switched it on and walla no problems??? I couldn't believe it, It was then fine the rest of the night and I shut it down.

Started it up again today and had it running for around 4 hours and all of sudden I got the blue screen of death memory dump error, does this help at all?
 
Still at this problem unfortunately, today I got a new power supply from a friend to test and ran into the same problem again, PC was on for an hour and it then came up with a blue screen memory dump error and crashed, any ideas on what to test for next?
 
Burn a memtest disk and boot from that, let it churn away over night. Also, download a trial of HD Tune and see if there are any SMART errors on the drive
 
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