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Everything was great, the system wasn't strained, memory was barely registering Frame rate was above 20 at 1600x1056 resolution of a plasma cart model and then Power shutdown. I have a quad core athlon II running under 42deg C. on a MSI DDR3 board with 2 GTX-260 OC'd and a 980a/760 Chipset with a 680Watt Power Supply (wish it could be more but must save up now). Could this be a power Undersupply Problem? What is the min or avg. power supply anybody would suggest. Each gtx260 card takes 2 8pinner connections.

Next time I rebooted and ran it for a while - no problem. Flukey?

should I wait for using it much before acquiring a larger power supply?

Thanks for any Suggestions

8Eggar8 wrote:Everything was great, the system wasn't strained, memory was barely registering Frame rate was above 20 at 1600x1056 resolution of a plasma cart model and then Power shutdown. I have a quad core athlon II running under 42deg C. on a MSI DDR3 board with 2 GTX-260 OC'd and a 980a/760 Chipset with a 680Watt Power Supply (wish it could be more but must save up now). Could this be a power Undersupply Problem? What is the min or avg. power supply anybody would suggest. Each gtx260 card takes 2 8pinner connections.

Next time I rebooted and ran it for a while - no problem. Flukey?

should I wait for using it much before acquiring a larger power supply?

Thanks for any Suggestions

It seems to be needed more powerful PSU.

Try down-tuning your video card a little using whatever tuning tool you like. Radiance has always said that OC'ed cards can be problematic as most applications that run on the video card, i.e. video games, don't run the gpu at full tilt for long periods of time. Octane uses the full resources of the gpu during rendering and so OC'ing can be really bad. That might be your issue.

havensole wrote:Try down-tuning your video card a little using whatever tuning tool you like. Radiance has always said that OC'ed cards can be problematic as most applications that run on the video card, i.e. video games, don't run the gpu at full tilt for long periods of time. Octane uses the full resources of the gpu during rendering and so OC'ing can be really bad. That might be your issue.

Thank you guys,
Problem solved. Splurged on a 'worthwhile' 1000W Kingwin power supply. The only weak link in my system was a cheapo $22.00 680W (1) sli - 2 6 pinners. The one I just purchased is not so cheap but just what I needed to safely power the good hardware I have.

Most likely low amps on the old PSU. Usually the cheaper PSU's have the watts, but low amps on the +12v rail(s).