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GTS 250 SLI Power Supply

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I contacted BFG tech support about this and they sent me this in response:

"As far as the power supply
goes, one GT250 requires a minimum of 475 watts and as a general rule in an SLI
setup you should assume 1 + 1/2 for both cards in SLI. That would put you at a
minimum requirement of roughly 712 watts, well outside of your 600 watt power
supply."

Any truth in this statement?
Power supply Master

For a pair of GTS 250 in SLI, the 600W PSU is marginal. For a system with a single GTS 250 the recommended PSU is 450 Watts minimum.

Therefore, you may be better off with the 850 Watts PSU that you selected.

In my system, I have a GTX-275 as well as a GTS-250 (PhysX) and I am using a HX 850 (850 Watts) Corsair PSU.
Related ressources
Power supply Master

berkeleyboi said:
I contacted BFG tech support about this and they sent me this in response:

"As far as the power supply
goes, one GT250 requires a minimum of 475 watts and as a general rule in an SLI
setup you should assume 1 + 1/2 for both cards in SLI. That would put you at a
minimum requirement of roughly 712 watts, well outside of your 600 watt power
supply."

Any truth in this statement?

They're out of thier minds.
http://www.tomshardware.com/reviews/geforce-gts-250,217...

Hmm... it seems like I'm getting contradicting answers here. Is my power supply alright or do I need a new one? If I get a new one, how many watts do I need and what brand should I get?

Based on the calculator, it seems like I have enough power. And I have run OCCT power supply test for 2 hours without problem. I'm starting to think the BSOD isn't because of the power supply since I'm getting the BSOD even with just a single video card.
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