I wanted to confirm that PCIE Bifurcation is working on my MSI X99S SLI PLUS after following JackSted’s guide.
I am using a Xeon E5 2687W V4
IOU2 is the very bottom PCIE X16 (X8 electrically) slot, and it also worked on IOU0, which is the 2nd to top X16 (X16 electrically) slot.
I have not tested IOU1, which I assume is the top slot since it is the only remaining fully wired X16 slot on the board.
Thank you for everyone’s tips and tricks out there! This is my first time modding a bios, and it makes me want to mod my X79 Rampage IV Gene next.