TheSlickOstrich :
I have an asus x-99 a motherboard. When I turn on my PC my USB keyboard and mouse will not power up. Any help would be great
Hi TheSlickOstrich

You will need to provide more information.
Did you install the drivers for your USB keyboard and mouse.?
Have you tried switching USB ports.?
Do you have the latest Bios for better support with some USB devices.?
Check you Bios configuration for compatibility support and USB settings.
Are all cable and connections to USB ports working correctly.?