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PSU for GTX280 SLI?

post #1 of 15
Thread Starter 
I currently run my GTX 280 OC'd (on sig rig) on a Thermaltake Toughpower 850w PSU and runs fine. Would adding another GTX 280 OC'd be too much for my 850w? If so would a 1000w PSU be enough?
post #2 of 15
That 850w is got watts to spare even with a GTX280 SLI!
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by CorryBasler View Post
That 850w is got watts to spare even with a GTX280 SLI!
Sweet thanks.
post #4 of 15
They say a Wattage requirement on the box but they usaly only burn about half of that number!
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by CorryBasler View Post
They say a Wattage requirement on the box but they usaly only burn about half of that number!
I've seen people run 9800GX2 in Quad-SLI with an 850w psu so I'd figure GTX 280 in SLI might do okay.
post #6 of 15
One is 236w so three is 708w already. If everthing is at stock, I think your 850 may make it. Good luck.
post #7 of 15
Thread Starter 
Quote:
Originally Posted by linskingdom View Post
One is 236w so three is 708w already. If everthing is at stock, I think your 850 may make it. Good luck.
Hopefully it could take two with some overclocking.
post #8 of 15
I guarantee you your PSU will handle it, even with a lot of OC

http://www.overclock.net/hardware-ne...ower-draw.html

http://www.vr-zone.com/articles/Powe..._SLI/5870.html

http://arstechnica.com/reviews/hardw...s-review.ars/7

Just do the math
Edited by xz3rorom3o - 7/2/08 at 12:40pm
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post #9 of 15
Quote:
Originally Posted by linskingdom View Post
One is 236w so three is 708w already. If everthing is at stock, I think your 850 may make it. Good luck.
i thought that the 2nd and 3rd card wouldnt draw as much as the 1st?
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post #10 of 15
Keep power in reserve for the other components, but should get a nice OC
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