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650w PSU enough for x-fire 7950's ? - Page 4

post #31 of 44
Sounds like you have you mind made up on the Corsair 1200 but just in case you haven't I would reccomend the KingWin Lazer Platinum Modular Power Supply. This is the Review that made me decide to buy it. It is very thorough. Hard to beat the price for a 1000w PSU.
post #32 of 44
Corsair 1200kw? Do not get a single rail psu over 1kw. That's all I can add.
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post #33 of 44
Yes, most builds with no GPU can be kept under 200w, but a good 750 will be good, and to add onto the Corsair 1200i, it has 1 rail that develops 1206 watts!
     
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post #34 of 44
Quote:
Originally Posted by tsm106 View Post

Corsair 1200kw? Do not get a single rail psu over 1kw. That's all I can add.

What makes you say that?
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post #35 of 44
He is saying that it is overkill, a 750w will be enough and still leave a bit of headroom, if you want to OC everything then get a 850/950 and if you want a 3rd one in the future get a 1200, but I wouldnt advise it since TriXfire or Tri SLI dont scale well in games
     
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post #36 of 44
Quote:
Originally Posted by Pedroc1999 View Post

He is saying that it is overkill, a 750w will be enough and still leave a bit of headroom, if you want to OC everything then get a 850/950 and if you want a 3rd one in the future get a 1200, but I wouldnt advise it since TriXfire or Tri SLI dont scale well in games

No, he's saying not to do it because a single rail PSU with over 1kW will not likely trigger OCP if a short circuit occurs. Basically, your house burns down - this is because 1kW+ on a single rail has a high OCP limit. Whereas multi-rail 1kW+ PSU will trigger OCP because each rail will have a lower OCP limit.
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post #37 of 44
Thread Starter 
I need a 1200+w psu not only for the tri-fire cards but also want to TEC cool the cpu block.
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post #38 of 44
Quote:
Originally Posted by Wookieelover View Post

I need a 1200+w psu not only for the tri-fire cards but also want to TEC cool the cpu block.

That's totally fine - but you should pick a multi rail PSU at such a high wattage for safety.
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post #39 of 44
Thread Starter 
Quote:
Originally Posted by tompsonn View Post

That's totally fine - but you should pick a multi rail PSU at such a high wattage for safety.

You able to suggest one from a well known brand?
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post #40 of 44
Quote:
Originally Posted by Wookieelover View Post

I need a 1200+w psu not only for the tri-fire cards but also want to TEC cool the cpu block.

Why would that require a 1200W+ PSU?
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