The Asus UEFI BIOS Utility, Advanced mode, under Tools\Graphics Card Information, GPU Post, I see a setting called "Bus Interface."
Can anybody tell me what this is?
I have two GPUs attached to my X299 Prime Deluxe board, and since I've got an i7 7820x in there, the card in slot PCIEX16_1 has 16 pcie lanes, and the second card in PCIEX16_3 has 8 lanes.
This setting defaults to the 8-lane card. When I try to change it to the other one experimentally, I save and restart, but whenever I go back into BIOS, its set to the 8-lane card again.
I'm just wondering what is going on here. Thanks to anybody who can help!