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X99 Soc Force: PCIe lane distribution

X99 Soc Force: PCIe lane distribution
« on: January 07, 2015, 07:27:50 am »
Hi there,

a question regarding the Gigayte X99 SOC Force with the 5820k CPU installed:

I want to (temporarily) install three GT210 video cards and an Asus PCIe2x SSD,  four PCIe cards at all. The SSD won't physically fit in the small PCIe slots so I have to use a large (orange) one. After trying out a lot it seems the only way it works is this layout

PCIE_1: GT210
PCIE_4: GT210
PCIE_2: SSD
PCIE_3: GT210

with all four PCIe microswitches turned on. Swapping one of the GT210's with the SSD renders one GT210 unfunctional.

Any idea why? I was hoping to get the GPUs in 8x/8x/8x mode but in this layout it's 8/8/4 or something (which is also documented in the manual).

Thanks a lot.