I run one SLI card without problems.  If I ran two, there would be no room 
for any other cards; no sound card, for instance.  (This depends on the 
motherboard and the cards, of course.)

You need to have a motherboard that supports the video card  (or a video 
card that works on the motherboard).  My motherboard with PCI Express does 
not have an AGP slot on it.  I can't speak for every mb on the market, but I 
suspect that PCIE mb's don't support AGP, and vice versa.  So, just make 
sure that your pieces are compatible.  I think that PCIE is the wave of the 
future, so its advantage is that it will likely have a more lengthy life. 
Note, that the power supply comes into play here, too.  Using an adapter I 
used a PCI Express power supply with a non-PCIE motherboard.  I doubt (but 
am not certain) that you can use an older power supply with PCIE.

Dean Kukral

----- Original Message ----- 
From: "daniel" <[log in to unmask]>

I do not really need SLI, but I see a couple of motherboards with good 
reviews that feature it. These are my questions.
1. If I buy such a board, can I operate with only one video card?
2. If I can use the board with one video card, are there any disadvantages 
to using this board with one care, rather than getting a board without SLI?

Thanks

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