Hello, my motherboard is an ASUS Prime z270-ar and I was needing to backdate it to the bios that came with it when it was originally purchased. I believe that it was bios version 05. I cannot currently find that bios on the website and I have tried flashing it back to the oldest bios they have. That didnt fix my problem.
Problem I am having is that I have 4 pciex1 plugged into the board with no other pcie/m.2 slots being used. Before I updated the bios, it would recognize all 4 just fine, now it only recognizes 3 of the 4 at any given time. I have enabled 4g decoding and set all of the graphics stuff to gen 2/1 (tried both) and nothing seems to be helping.
Problem I am having is that I have 4 pciex1 plugged into the board with no other pcie/m.2 slots being used. Before I updated the bios, it would recognize all 4 just fine, now it only recognizes 3 of the 4 at any given time. I have enabled 4g decoding and set all of the graphics stuff to gen 2/1 (tried both) and nothing seems to be helping.