4870x2 and a 8800 GT for physics

[Face2Face]

Hello people,

Just aquired a 4870x2 and was wondeing if I could use my 8800 GT for physics. I have a ASrock 880 G extreme mobo with three physical PCIE 16x slots.With multi GPU setups it runs 8x 8x 4x. I would like my 4870x2 to run at 16x with the 8800 Gt in the 4x slot if that is possible? is it even worth it?? I have a low power 9600 Gt that might work better or a 9800GTX aswell. I have a Corsair 750 watt - with a 60 amp single rail. It should be enough right? I am just asking for some advice, i don't know much about physics. thanks

 

[bka4u2c]

You can install two different video cards in Windows 7. But it is not supported by Nvidia, which means you have to use cracked drivers from Nvidia for the physX to work. Its not that difficult, just Google it and you'll find it.

 

[v8envy]

You can do this with XP and Win7, not with Vista. The latest beta driver from NV accidentally removed the vendor lock out, but in general recent NV's drivers will disable hardware PhysX if they detect your primary display is ATI.

You should be OK power wise, a 4x slot will be plenty for a PhysX card. A 9600 should be plenty of oomph for current titles, and your corsair 750 will be more than sufficient.

 

[Face2Face]

I am pretty sure that the first two PCIE slots share lanes --So either one 16x or two 8x. I am plan on installing the card in the 3rd slot with is 4x --And am hoping it doesn't rob the 4870x2 of bandwidth. I did some searching and found some guides that help. Seems like it's a lot of trouble for an ATI primary card.

 

[Dark Shroud]

You can thank Nvidia for that. Their way of compeating with ATI this round is to punish the customers.