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Shurman292

GTX 470 SLI on 650 Watts

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Now I know this does not sound like the greatest idea in the world, but I come to understand that Corsair power supplies are some of the best in the business. I have the TX650 in my system currently powering one GTX 470. I have not seen this system go beyond 433 watts at the wall (using a Kill-a-watt meter) so will it be possible/stable/safe to SLI on this power supply? I really do not want to have to rip out the 650 and sell it ;)

 

Thanks!

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That's approximately 350W pulled from the power supply so you'll have more than enough for two GTX 470's but you don't have the required 4 x 6 Pin PCI-E connectors.

 

I've always wondered why the TX650W has only two 6+2 Pin PCI-E and the HX650W has four?

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Put the 470 back to stock clocks and remeasure. (and then you could maybe overclock them both later)

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Okay I see a problem. I often hit 550 watts usage with one GTX470 and my 920 folding. If you overclock a pair of 470s to any extreme on that system. You may risk running your system into the ground crying.

What about a 750 watt unit for 470 in SLI.

My thoughts of course.

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That's approximately 350W pulled from the power supply so you'll have more than enough for two GTX 470's but you don't have the required 4 x 6 Pin PCI-E connectors.

 

I've always wondered why the TX650W has only two 6+2 Pin PCI-E and the HX650W has four?

You are correct, and I cannot believe I did not see this before...I guess upgrading will have to wait until I am able to sell my TX650 :(

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