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SLI Requirements

post #1 of 6
Thread Starter 
I got the eVGA 7800GT 516 card (256Mb) the other day, and put it into my comp.

What are the requirements for SLI with this card?

Must I use another 516, or can I use a 517 or 518?

Thanks
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post #2 of 6
Quote:
Originally Posted by pyr0m1
I got the eVGA 7800GT 516 card (256Mb) the other day, and put it into my comp.

What are the requirements for SLI with this card?

Must I use another 516, or can I use a 517 or 518?

Thanks
You also need a SLI motherboard, and a SLI bridge is optional but highly recommended for best performance. The card does not have to be the same model but it does need to have the same chip (GT) same mem (256MB) and same clocks (I think). I know it doesn't have to be the same brand, though.
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post #3 of 6
Yep just buy another 7800 GT any model and DL the forceware driver from nvidia that will force them to work together.I beleive that they don't have to be the same clock speed (they will just default to the slower clock speeds of the two).
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post #4 of 6
Thread Starter 
If I got the 518, that would come with a SLI MoBo, but i wanted to know whether I needed to buy the 516 AND a MoBo, or just the 518 (MoBo free)

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post #5 of 6
Get the 518 with the free mobo It will only work with the latest forceware drivers though.
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post #6 of 6
yeah get the 518 w/ the free mobo. that's your best deal. the mobo will come w/ a SLI bridge so you're all set to go.

And as stated before you'll want to use the newest drivers (you'd want to anyway...) both cards will run at the clock speeds of the 518 wich is 445/1xxx something. If the 518 will run fine at the clock speeds of the 516 then you can OC that card and you'll be all set to go.

a quick note on over****ing SLI. coolbits uses the first card (top one) to judge the optimal clock frequency settings so you should put your lowest clocked card on top so when you OC you'll know for sure that both cards can handle the OC. (within reason)



oh, you might want tog et a new psu too... I'm not sure how that roswill will stand up to SLI 7800GT's take a look at a sunbeam nuuo or seasonic S12-600. the Antec neoHE looks pretty good too
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