Scarlet-TechCptSpigMaybe this will help. Put your gpu in 1 and your other cards in 3,4,5 or 6 leave 2 blank.PCI-E Slot BreakdownPCI-E Lane DistributionPE1 – x16 (x8 if PE2 is used)PE2 – x16 (x8 if PE3 is used)PE3 – x8PE4 – x16 (x8 if PE6 is used)PE5 – x1PE6 – x8Incorrect. Slot 1 runs on cpu, all other slots run on plx. Anything in any lane other than slot one will force lane 1 into x8. Slot 2 and 4 run off the plx which mimic both being x16, but are only actually running at x8 to the cpu. If slot 3 has anything in it, it will change the plx lanes to x8 for lane 2. Same with slot 6 and 4 together.
CptSpigMaybe this will help. Put your gpu in 1 and your other cards in 3,4,5 or 6 leave 2 blank.PCI-E Slot BreakdownPCI-E Lane DistributionPE1 – x16 (x8 if PE2 is used)PE2 – x16 (x8 if PE3 is used)PE3 – x8PE4 – x16 (x8 if PE6 is used)PE5 – x1PE6 – x8