I’m trying to setup a system that can talk to all 4 S870 GPUs. In other words, I want to have both 16x expansion cards plugged into a single system. As far as I could tell, none of the rack-mount systems on the ‘compatible systems list’ on the CUDA page had room for both 16x (Gen 2.0) expansion cards and a graphics card for the primary display.
So, I went and bought a 780i chipset based board, which has 2 Gen2 PCIe 16x slots and a third Gen1 16x slot. I have FC8 installed, and got CUDA working with the 8600 GPU card that’s also the primary display adapter.
However, when I connect the S870s, the machine won’t boot, I don’t even see the BIOS splash screen come up. So, I took out one of the expansion cards and moved the other one to the Gen1 slot (and the display adaptor to the Gen2 slot), and then it would boot. However, then running deviceQuery resets the computer.
Any ideas? If this 780i chipset is no good, does anyone have a recommendation on another platform that could support both S870 cards and a graphics card? Thanks,