I have 2 x 270's on a gigabyte x58-udr3 board, the cards are in slots 1 & 2 (16,16), I've added a spare 8800GT card in the bottom slot (8x), obviously this isnt in SLI but is being used as a dedicated physx card. because its not in SLI does it still lower all 3 cards down to 8x like it would if they were all in SLI.
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SLI + physx question
- Thread starter arfur
- Start date
The 8x restriction is unrelated to SLI, the motherboard doesn't have enough physical data lanes back to the CPU to run all 3 slots at 16x so you either get 2x 16 if you only have 2 devices of any kind connected and as soon as any device occupies the 3rd slot it drops down to x8 per slot.
Aslong as its working at PCI-e 2.0 spec x8 is plenty of bandwidth for 200 series nVidia cards or lower.
Aslong as its working at PCI-e 2.0 spec x8 is plenty of bandwidth for 200 series nVidia cards or lower.
This