3 gfxs bridge question

C

ColdCrow

Limp Gawd
Joined
Mar 31, 2005
Messages
289
I'm using duel cards atm, but my mobo also came with a three way sli bridge. I was looking at how the bridge allows the 3x to connect but has a whole extra row, which I circled. Looking at my cards I have (9600GT) the 3 way bridge does not look like it would connect because of extra row on the sli bridge. I'm assuming I can not use 3x 9600gts because they do not have that extra row on them?
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3bridge.jpg
 
Yes -- 9600GTs don't support Tri-SLI at all. Only the 8800 GTX, 8800 Ultra, and 9800 GTX (and presumably, the upcoming 280 GTX) support Tri-SLI.

If you look an an 8800 GTX you will see it has two "fingers" on the top edge of the card -- the bridge attaches to both "fingers" on all three cards. The bridge makes it look like it would connect three cards with one row, but it doesn't.

It goes like this:
Left to left, bottom card to middle card.
Right to right, middle card to top card.
Left to right, top card to bottom card.

This allows any given card to communicate with all others. You can actually "build" a Tri-SLI bridge with three flexible bridges -- the MSI P7N-Diamond comes with three bridges for this purpose, one very long one and two moderately long ones -- but it looks odd.
 
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