System "random" shutdown

Thierry Leung · Apr 14, 2013

Hello people,

I just built a new system but I'm experiencing some 'random' shut downs without any warnings. The problem is recurring; as soon as I open Battlefield 3 or Call of duty it shuts down immediately but sometimes I can play with no problem at all. Watching vids on youtube also causes shut down but its not recurring.
Note that GPU driver up to date and so is BIOS. Got Windows 7 installed on a brand new hard drive.
Heat is not an issue; im using stock cooling, idle temp is 17-24 and 30-50 on load.
Ran memtest86 for a few hours without errors.

I've been building my rigs since long and I never came across such a problem. Can someone advise me? Everything is new except for the PSU and the GPU(2months old)

AMD FX-8120 3.1Ghz (never oc'd)
Gigabyte GA-970A-D3 AM3+ UD3
CORSAIR XMS 16GB DDR3 1333
MSI Geforce GT610 1GB (low profile)
Seagate Barracuda 2TB 7200rpm
Western Digital 320GB 7200rpm
PSU 450w

thanks

tiny voices · Apr 14, 2013

First thing I would say would be the PSU but because you have such a tiny GPU that uses basically no power at all, I'm not sure. What brand is the PSU?

Thierry Leung · Apr 14, 2013

There is no brand on it.

Thierry Leung · Apr 14, 2013

Also note that the ATX 12v on the mobo is 8 pin but my PSU has only 4 pins.

tiny voices · Apr 14, 2013

If it is a no-name, it likely makes far less than the stated wattage. Probably around 300w actually. This could be the problem. I'm not positive because your GPU pulls so little power. If you can get another better quality PSU to test, I would do that.

You need a new PSU. One with 8 pin connector. Look at Antec, XFX, Corsair, Seasonic.

Thierry Leung · Apr 14, 2013

Could the ATX 12v be at fault? Its 8pin on the mobo but I only have 4 pins

tiny voices · Apr 14, 2013

Yes it could be. You need to replace the PSU with a quality unit.

Thierry Leung · Apr 14, 2013

Ok will buy a new one tomorrow. But I've heard that the 8pin connector is not a necessity, at least not when overclocking. I also noticed that the cores occasionally run at 3.5/4Ghz but its supposed to be only 3.1Ghz(I did not oc).
I use core temp.

tiny voices · Apr 14, 2013

Make to sure to get a PSU from Antec, XFX, Corsair or Seasonic.

Thierry Leung · Apr 14, 2013

is COOLER MASTER 525W EXTREME2 POWERPLUS a good buy?

tiny voices · Apr 14, 2013

Not really. Coolermaster PSUs are pretty awful. Stick to the brands I listed.

Thierry Leung · Apr 14, 2013

I've got Antec HCG-620/700/900 at my local shop but its awfully expensive($120+). Hard to decide considering that a new PSU is not certain to solve my problem.

tiny voices · Apr 14, 2013

It's not worth buying a cheap PSU. 450w is plenty for your system as long as it is from a reputable manufacturer. A bad PSU can fail and take your whole system out with it.

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System "random" shutdown

Thierry Leung

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Thierry Leung

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Thierry Leung

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tiny voices

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Thierry Leung

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tiny voices

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Thierry Leung

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tiny voices

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Thierry Leung

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tiny voices

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Thierry Leung

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