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7900 GS SLI help

Last response: in Graphics & Displays
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November 16, 2007 5:57:29 PM

so guys, here's the deal:

in my mobo (a MSI K9N SLI Platinum) I've already got a GeForce 7900GS running. the thing is: this GeForce (a XpertVison one, with 512 MB/GDDR3) seems to be extremely rare. I can't find it even in XpertVision's website. so I'm wondering: if I buy another 7900GS, but from (per example) MSI and with 256MB, will the SLI work fine?

help!

More about : 7900 sli

November 16, 2007 6:21:16 PM

I dunno but as far as I know the 2 cards have to be identical. Why not just buy a 8800GT?
November 16, 2007 6:48:30 PM

As I understand it, you will get the lower clock speeds and memory sizes and speeds, but it will work.

Of course, there's always selling the old card and buying something new.
a b Î Nvidia
November 16, 2007 7:25:50 PM

Whenever someone posts an SLI question, I refer them to the SLIzone FAQ. http://www.slizone.com/page/slizone_faq.html#c3 And I quote...

Quote:
Can I mix and match graphics cards with different sizes of memory?
While it is not recommended, NVIDIA does offer this flexibility using Coolbits. When purchasing a second graphics card, you should try to match the memory size so that you are ensured full value and performance from your purchase. For example, if your first card is a GeForce 6600 GT with 128MB of memory, you should purchase a second GeForce 6600 GT with 128MB of memory. However, using Coolbits (value set to 18), you can force both of the cards to use the lower of the two memory sizes and operate together in SLI mode.


Using Coolbits, you can downclock an overclocked model to work with a standard clocked one, or you can disable half of the memory for one that has more.
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