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Old 11-26-2010
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Default When to use 2 PSUs?

Deleted 1st thread because of erroneous title. Here goes again....

Blew one antec tpq 1200 OC already running 980x with tri-sli 580's under LN2. Everything pretty heavily overclocked with CPU at 6.09 ghz with 1.83v and all 3 cards at 1150/1150 with Gpuv of 1.38. Passed 3d03 with this, but "pop and smoke" from PSU when starting Jane in Vantage.

Someone had the good suggestion that I shouldn't use a surge protector (I had been) thinking it could limit the power input and starve the PSU. Sounds good to me, but checking my surge protector tonight it's rated for 1875W and I have run hairdryers through it for 20 minutes straight without trouble. The night of the blown PSU, the only other thing going through it was the monitor.

Now I have an Antec 1200 HC sitting here and I'm a bit leery of running all 3 cards on it alone. Even with stock cooling and volts, each card can go above 300W so I'm looking at an easy 1200W without much overclock.

Your guys thoughts? Add my TX650 to run one card? (It currently has fan duty run from another outlet). Wait for the 1200 tpq OC replacement from RMA to do dual duty? Risk running it all on the the 1200 HC?


In the meantime, I think I'll just do plain old 2 card SLI tonight.......

Edit: thanks for your input Kal. Advice noted.
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