Desktop Computer shuts down without warning

November 10, 2010 at 00:10:24
Specs: Windows XP sp3
It never had this problem before but a week ago I transported my computer and there the problems began. It shuts down when starting up a game or being loaded (multitasking). I have a 400W PSU so that should be enough to feed this PC.

I will open the case and see if the graphics card or memory has been knocked out of place but I doubt it because the car ride was not very long nor rough enough to bang the case around that bad.

I have checked the temperatures and they are all fine and steady around 45 C. All the fans are running perfectly.

Could this be caused by changing the size of virtual memory?

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November 10, 2010 at 02:00:13
why change a virtual memory size(not enough memory)? Yes open pc case and check for any loose connections, also try to reseting cables (make sure everything is seated well), go to bios and check rails(+3.3v, +5v, +.12v) if they are ok. If everything is ok then psu is the problem.

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November 10, 2010 at 05:46:59
well I checked everything and besides a RAM clamp being loose there was nothing and it still shuts down when running a game, not always tho which is interesting. Also when it loads a flash game or video from a browser it sometimes shuts down. I updates all graphics drivers and still. I will check bios for those volts and see..

E: checked BIOS and rails are fine

so if the PSU has gone bad is there any way to fix it or is it better to get a new one?
and if I have to get a new one how do I know I get the right one, will any 400 watt work or will it have to be a specific one?

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