Question about SLI power supplies.

[Pez D Spencer]

Im building an SLI machine. I already have one 7800GT and have another on the way as well as an A8N32 mobo.

I haven't decided on the PSU to get but I am considering the Turbine Power 550W. It got good reviews from several sites and is modular which I like a lot.

Heres a link to the item on Newegg:
http://www.newegg.com/Product/Product.asp?Item=N82E16817101208

Heres a pic of the PSU's connectors:
http://www.viperlair.com/images/reviews...r/psu/acoolt550/turbine_connectors.jpg

The Turbine Power 550W is SLI certified but what I am confused about is that there is only one PCI-Express connector on the PSU. When running in SLI does only one of the cards have to be connected to the power supply or both? I was assuming both have to have power coming to them.

Since this PSU only has one SLI connector this would mean that you would have to use two molex connectors with an adapter to power the second video card right? Or no? Whats the deal?

If an SLI setup does require two PCI-E connections to the PSU like I am assuming then what are some good 550W or greater PSU's that have two connectors? The only requirement other than the PSU having greater than 550W of power is that it MUST be modular. I don't want a PSU thats not modular.

Thanks.

 

[boyRacer]

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Looks like it's shared like you said.

Anyway I know you said modulars only, but in case you change your mind this costs the same. 🙂

 

[Pez D Spencer]

I dont mind that it's shared from the same connector like that I was just trying to avoid using an adapter with two molex connectors. I just don't see why they didnt sleeve the second PCI-E power connector. Thats kinda lame looking.