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  #1  
Old 06-02-2012
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Join Date: Nov 2011
Posts: 61
Continuous rebooting of the system when the power is connected to 2 GeForce GTX 280 slots

Below mentioned is the system configuration of the computer of mine.
Quote:
Gigagyte GA-Z68XP-UD3R
i7 2600k
4 Gb Crucial Ballistix Tracer
Antec earthwatts 650 (12v-1 38amp, 12v-2 38amp)
Gigabyte GTX280 and XFX GTX280
WD black 500Gb
Win7 ultimate 64 SP1
Both the cards are working fine with either of PCI-e slot. Both the graphic card are connected with 280s. system is getting restarted continusly when it is rebooting. Irrespective of SLI bridge is turn on or off.
However when I unplug any one card then system is booting fine and working flawlessly.
Already tried to point out the problem by swapping 6 pin and 8 pin connecters but I got nothing. Let me know if you are having any idea to fix the problem.
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  #2  
Old 06-02-2012
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Join Date: Nov 2010
Posts: 366
Re: Continuous rebooting of the system when the power is connected to 2 GeForce GTX 280 slots

After going through the problem I wanted to tell you know that there is need of minimum 550W. you will need to add another 236Watt PSU.
But personally I would recommend to go for PSU of 850W+ or above range.
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  #3  
Old 06-02-2012
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Join Date: Dec 2010
Posts: 407
Re: Continuous rebooting of the system when the power is connected to 2 GeForce GTX 280 slots

Well I am suspecting that above integrated GPU has been disabled on BIOS. So
  • you have to perform below mentioned steps to fix the problem.
  • You have to restart the computer and press Del key to enter into BIOS set up.
  • Now move around into menu look for option like ?onboard?, ?integrated video? or ?VGA?. It is located at Integrated Peripherals section.
  • You have to change the integrated graphics setting enable if it disabled.
  • Now save the changes which you have made and exit the BIOS.
Finally restart the computer and see whether it is working or not.
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  #4  
Old 06-02-2012
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Join Date: Mar 2011
Posts: 358
Re: Continuous rebooting of the system when the power is connected to 2 GeForce GTX 280 slots

GTX280 can be used with 230W PSU. You will be able to run couple of graphic cards which can run smoothly with 460W power supply. there is no idea to run the PSU which is close to maximum capacity for long time. So there will be need of allowing only 300W for remaining system.
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