Quote Originally Posted by sholvaco View Post
No. Eight lanes are electrically hardwired to the first x16 slot while the remaining eight run through lane swithces to either the first or second x16 slot. The second x16 slot is limited to x8 speed whether the first one is occupied or not and this goes for every SLI/CF certified P55 motherboard except those running NF200 or similar dedicated switching hardware.
Thanks for the reply sholvaco.
What would happen if you use the first slot and leave the second one empty but use the third slot which is a 1 x PCIe x16 (white) supports at x4 mode which gets it`s lanes from the chipset instead of the CPU as in the first and second PCIe 2.0 x16


If a card is used in the third? Would that force the first slot to use only 8?