[Mason24]

Hello, I recently purchased a new rig and was planning on giving my older rig to a friend. This PC has a m2n-sli deluxe board and right now is running a single bfg nvidia 7900 gs oc. I'm not to sure how SLI works but i also have a regular 7900 GS. Would these 2 cards work even though one of them came overclocked? or would they just run at the speed of the slower card?

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Hi.

Here is a good article which should answer your question, and more, > http://www.tomshardw...-crossfire-faqs

You would have to also check that the PSU, has enough PCI-e connectors delivering enough amperage for duel card setup.

Edited by iammykyl, 05 February 2011 - 05:41 PM.

[iammykyl]

Hi.

Here is a good article which should answer your question, and more, > http://www.tomshardw...-crossfire-faqs

You would have to also check that the PSU, has enough PCI-e connectors delivering enough amperage for duel card setup.

Edited by iammykyl, 05 February 2011 - 05:41 PM.

[Mason24]

Thanks for the article, my PSU is 520 watt corsair http://www.newegg.co...N82E16817139001

[iammykyl]

video card system requirements.

Minimum System Requirements

• CPU with processor speed of 1GHz or higher
• 256MB of RAM
• Microsoft Windows XP
• CD or DVD-ROM drive
• 35MB available hard disk space (50MB for full installation)
• A 350W PCI Express compliant system power supply (with 12V current rating of 22A or more)
• A PCI Express compliant motherboard
• A vacant X16 PCI Express slot
• Two available hard disk drive power dongles (smaller floppy disk drive connector is not sufficient)
  -or-
• A PCI Express supplementary power connector
  NOTE: For two GeForce 7900 GS-based graphics cards running in NVIDIA SLI configurations, a minimum 450W system power supply (with 12V rating of 28A) is recommended. Visit www.slizone.com

Your PSU.

+3.3@24A,+5V@24A,+12V1@18A,+12V2@18A,+12V3@18A,[email protected],+5VSB@3A

Don't know if you connected the card with the supplied Dongle or you used the PCI-e connector.

The PSU has enough watts but not sure about the amps.

Install the second card and let us know how it goes.

[stettybet0]

or would they just run at the speed of the slower card?

Exactly. Your PSU has 2 PCI-Express power connectors and 40A on the 12V rails, so you're good to go.