PSU support SLI

Need a quick reply, an ebay listing hangs in the balance :)

My question is:
Will my PSU be able to supply power for an additional 8800GT card?

At the moment my Specs look like this:

Antec 650W EA-650 PSU
Asus p5n-e SLI Motherboard
Intel Q6600 Quad
1 Sata HDD
1 Sata DVD reader
1 Asus 8800GT
couple of fans
Inbuilt card reader on case

I know on several sites it says that it is SLI certified but how can that be so with a single PCI-E connection?
6 answers Last reply
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  1. Yes I would think so. According to my research they only use 110W each those cards. And needs 1 8pin and 1 6pin PCI-E connector, so you would have to use molex adapters. But it should definitely be able to provide enough power.
    On the newegg page: http://www.newegg.com/product/product.aspx?item=n82e16817371015 it says 1 x 6-Pin, 1 x 6+2-Pin. If your PSU is different then I don't know what's going on.
  2. Very quick :)

    But I have my PC in front of me and I can't for the life of me find another PCIE connector. is it possible to use adaptors?
    Also does the 8800gt need the extra 2 pins on the 6 + 2 pin?
  3. In short my 8800gt is plugged in with what looks like a single 6 pin... Strange. Maybe they vary?
  4. Quote:
    Also does the 8800gt need the extra 2 pins on the 6 + 2 pin?
    Well that's what it says on the Nvidia product page, so I would follow that if it was me. Otherwise the card might not get the power it needs to function properly.

    Here's a good picture illustrating what the connectors will look like: http://techreport.com/r.x/psus-0907/pcie-connectors.jpg

    My understanding of the adapter issue is that the two peripheral connectors go into the power supply and then it plugs into the PCI-E connector at the other end.

    Quote:
    In short my 8800gt is plugged in with what looks like a single 6 pin... Strange. Maybe they vary?
    Is there not another plug? Yea, Nvidia products seem to have quite a lot of variations. The other explanation is that my research may be faulty.
  5. I think i may have solved this :
    http://www.tomshardware.co.uk/forum/251108-15-cables-geforce-8800gt

    That refers to the 6 pin connector issue, as in that that thread most of the participants seem to think it only need 1

    I have also found the second PCI E , just marked P5 but is the same as the one I have already put into my existing board.

    Many thanks for your help !

    Matthew
  6. No problem. And I will keep that in mind in future that that card doesn't always need the 'extra' PCI-E connector.
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