gtx 660 shutting down on 600w psu

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dante007

dante007

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Jun 21, 2014
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HI.I have an issue with my current asus gtx 660.everytime I play games like tomb raider 2013,DmC 5,or AC3 the computer shuts down automatically without any warning and my pc restarts.I am having no problem while playing ac 3 on medium setttings but when i turn up to high then my pc reboots.while other two games are not even playable at lowest settings.plz help.thanks in advance.and also one more thing iam using it from dvi to vga adapter.can this be the cause of the issue.my gpu and cpu are not overheating.i have one cooling fan also.
motherboard asus p8h61 lx 3 r2.0
gpu asus gtx 660
psu 600w with 6pin and 8 pin pcie connector
ram 4 gb
 
Solution
Lmah
I'm confident it's the PSU after checking that out. I would suggest buying a new PSU, if you cannot afford one at the current time, I would underclock your video card slightly and lower the power target as well and see if that helps.

Also, I suggest looking for brand with a higher reputation, the quality of your PSU is very important. The PSU can make or break (literally) your system by providing bad current. Look into Seasonic, Corsair, EVGA, etc...
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Lmah

Lmah

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May 3, 2013
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DVI to VGA adapter is not the issue, what is the make and model of your PSU. If it's a lower quality one it could be outputting less than 500w... Also is your video card a reference GTX660. Is your onboard video disabled, that could cause conflicts as well.
 
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dante007

dante007

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Jun 21, 2014
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thanks lmah.my psu is VIP 600w psu. but my computer is running fine while not playing games.also ac3 can be run on medium but not on high.and what do you mean by onboard video disabled.plz explain it to me i have a i3 2100cpu.when i previously was having a 210 i was having not a problem at all.also my psu is having 6 pin and 8 pin pcie connector.so this means i should be able to run this card as this card requires single 6pin pcie connector.
 
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Rammy

Rammy

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Sep 3, 2012
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The obvious thing would be the PSU, as it's a no-name PSU without any information available. If my googling results are correct (and this is fairly unlikely due to poor information) then it might only have a 36A +12V rail which means that despite being labelled as a "600W" PSU, it might be much closer to 400W in reality.
Now a GTX660 can run fine on a 400W PSU, but that doesn't take into account how stable the delivery is. In a poor quality PSU, it could be highly likely that as soon as you apply any kind of meaningful load, it dies.

Edit - if you want more information about your PSU -check the label on the side and report back to us (picture would be good if you can) as it'll give a bit more specific information. Like I said above though, it might be a quality rather than a capacity issue.
 
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Lmah

Lmah

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May 3, 2013
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I'm confident it's the PSU after checking that out. I would suggest buying a new PSU, if you cannot afford one at the current time, I would underclock your video card slightly and lower the power target as well and see if that helps.

Also, I suggest looking for brand with a higher reputation, the quality of your PSU is very important. The PSU can make or break (literally) your system by providing bad current. Look into Seasonic, Corsair, EVGA, etc...
 
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Solution
dante007

dante007

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Jun 21, 2014
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very much thanks for your quick reply.can you suggest me psu in corsair and coolermaster.i am going to exchange my current psu.
 
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