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May 14th, 2008, 08:30 PM | #1 |
Major Player
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
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Powering two 9800GTX GPUs - enough connectors?
This is my power supply:
An Antec 1000W which apparently has: 2 x 8-pin PCI-E connectors and 2 x 6-pin connectors for PCI-Express graphics cards What does that mean about powering dual 9800GTX cards, which require 2 x 6-pin connectors per card? Am I simply out of luck? Or can you get some sort of adaptor? I have two 7800s plugged in at the moment, both of which require a single plug each; and that plug comes from inside the PSU... so I don't know how to go about attaching an additional pair of plugs for the upgraded cards... |
May 14th, 2008, 11:05 PM | #2 |
Inner Circle
Join Date: May 2005
Location: Burnaby, BC, Canada
Posts: 3,053
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Is your motherboard SLI compatible?
and 1000W is more than enough for 2 video cards. There is a smaller PCI-e 1x like port on top of the card and that can be connected in SLI to boost performance compared to if they aren't connected. You're issue is the amount of cables. There are always adapters included in the box of these video cards to convert 2 standard HDD power cables into 1 6-pin PCI-E and if you buy 2 cards, you get 2 of them for use on one card. I also understand that your power supply is modular, meaning you can use less cables. with the use of 4 standard HDD ports, you should be fine since your HDD and disc drive should be powered by SATA anyways. |
May 15th, 2008, 07:58 AM | #3 | ||
Major Player
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
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Quote:
I don't know if the board is SLI compatible, but I don't care - I want the dual cards for 4 monitors rather than SLI. So basically all I need to do is plug plugs out of the PSU together until I have enough plugs leading into the GPUs? I have two of these ports (pictured left) just sitting in the case doing nothing, so if I can convert them into a single PCI-E power cable, and I use the two that are already in there, I'm still one cable short! Second picture is the back of my power supply and neither of the two red ports on the left are being used at the moment - they are just empty. Are they options? I don't know what they are. This is from a review of the PSU which makes no sense to me but may add to those trying to understand it: Quote:
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May 15th, 2008, 08:19 AM | #4 | |
Major Player
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
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Yikes!
Quote:
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