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The machine is simply restarting ~ once a day. Would you suggest first trying a new power supply?
– ccook
Commented Mar 8, 2012 at 12:31
Does the card still draw power when disabled?
– ccook
Commented Mar 8, 2012 at 12:31
@ccook The card may not actively draw power, but will still be powered. I'd recommend at least testing the PSU. In general, a bad GPU will cause bluescreens, while bad power (or a bad motherboard) is more likely to cause a machine to randomly restart.
– EKW
Commented Mar 8, 2012 at 15:23
1

If you have to order a new PSU and have it shipped, I'd first see if you can pull one of the other cards, pull power from it, and secure it away from the slot, to see if you're failing under load from all three, or just in configurations with the third.
– EKW
Commented Mar 9, 2012 at 12:34
1

@ccook Glad to hear you're back in business. I always recommend full-tower cases for multiple GPUs for this exact reason.
– EKW
Commented Apr 9, 2012 at 14:56

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