I have the Asus ROG Strix X99 mother board and bios updated to 1903. I installed a Samsung SSD 970 EVO Plus 1TB but I get PCIe Gen 2x4 I tried changing some things in the bios as device Gen 3, 4x and 8x but still cant get PCIe Gen 3x4, Would appreciate if some one can share the steps to change in the BIOS in case, and Im sure I missed something.
Thank you