I have an ASUS x99-A II Mobo with intel broadwell-e 6580K CPU with 40 PCI-e lanes, GTX 1080 in SLI, and Intel 750 PCI-E SSD 1.2 TB.
My issue is that GPU 1 is running at 3.0 x8 lanes and GPU 2 running at 3.0 x16 lanes, despite having enough PCI-e lanes from the CPU.
GPU 1 installed in PCI-E_1 slot and GPU 2 installed in PCI-E_3 slot per factory instructions, both slots rated PCI-e 3.0 x16 lanes.
The SSD is installed in the PCI-E_4 slot, also rated at 3.0 x16 lanes, but the SSD is only supposed to be using up 4 lanes
My issue is that GPU 1 is running at 3.0 x8 lanes and GPU 2 running at 3.0 x16 lanes, despite having enough PCI-e lanes from the CPU.
GPU 1 installed in PCI-E_1 slot and GPU 2 installed in PCI-E_3 slot per factory instructions, both slots rated PCI-e 3.0 x16 lanes.
The SSD is installed in the PCI-E_4 slot, also rated at 3.0 x16 lanes, but the SSD is only supposed to be using up 4 lanes