Computer shuts off for no reason

[Skyhawk]

Last night, I was playing Project Reality mod, when all of a sudden my computer just shuts down on me. I thought it was nothing serious, so I went off to restart my computer again.

Turns out I couldn't. I had to unplug everything, and turn it on from the back. The fans started humming for a few seconds, and the system turned itself off again. Even when I do manage to turn my computer on, it'll just randomly turn off all of a sudden whenever I'm in the middle of doing something. I haven't been able to narrow down the problem, but I do know that I can no longer play any games that require online access like Battlefield 2 Multiplayer and Project Reality, because it'll automaticlly shut my computer down again.

Already checked my computer for virus, and opened the case to make sure nothing was overheating. Those two didn't seem to be the problem.

My computer's been running fine for almost two years, so I don't know what the problem could be.

My Specs are:

Windows XP SP2
AMD Athlon 64 Processor 3000+
ASUS K8V-MX Motherboard
512 RAM
Nvidia GeForce 6600 256MB
Realtek AC'97 Audio
300 Watt Power Supply

[ConscriptVirus]

Re: Computer shuts off for no reason

even with an open case, ur comp can still overheat. make sure u remove dust from everything. im guessing that the problem could be overheating. sometimes mycomp just shuts down on me when im gaming for too long prob from overheating and my case is open. plus its summer

[Skyhawk]

Re: Computer shuts off for no reason

It was actually raining yesterday, and it's raining right now. So it's rather cool compared to about a week ago when most of my temperatures were spiking towards the 50c level. Currently most of my temperatures are running below 40c.

[Nightf1yer]

Re: Computer shuts off for no reason

Could be a PSU problem? What make is your 300W PSU?

[Skyhawk]

Re: Computer shuts off for no reason

Macron Power Model MPT-3012

[Nightf1yer]

Re: Computer shuts off for no reason

Macron Power Model MPT-3012

Cheap and nasty mate, i would deffo look at getting a better PSU.
It may or may not be the problem but will still be a good investment.
300W is very low these days. Freezing and reboot problems are often linked to a PSU on its way out

[Skyhawk]

Re: Computer shuts off for no reason

Okay, thanks. I'll definately look more into later today.

[BPCrusher01]

Re: Computer shuts off for no reason

Are you getting any beeps/sequence of beeps when it does whatever?

[Skyhawk]

Re: Computer shuts off for no reason

Nope. Just shuts off.

-- Any recommendations for a replacement for my PSU?

[Nightf1yer]

Re: Computer shuts off for no reason

http://www.xcase.co.uk/p/293064/coolermaster-igreen-power-430w-rs-430-asaa.html

Great PSU at good price...
Where you from?

Can get far better but i think you just need a 'decent' PSU

[Skyhawk]

Re: Computer shuts off for no reason

I'm living in Canada.

[camper.]

Re: Computer shuts off for no reason

Also I advise you disable "restart on Windows failure" in system properties ==> advanced (winXP).

Not that it seems that it will help in this situation, but it's worth a shot.

[Skyhawk]

Re: Computer shuts off for no reason

Seems like my computer is running fine again. I can play online without my computer shutting itself down.

[catskill]

Re: Computer shuts off for no reason

def would have thought power supply...
I had a few cheap cases that came with power supplies, all went bad.

Got myself a nice Coolermaster been great ever since.
BF2 wants LOTS of good clean POWER....