My first pc build in 10 years, gigabyte ab350 gaming, to save $ I got a win7 oem disc. USB did not work on install with dvd, I created a usb install with usb 3.0 drivers for win7 using dism. Windows installed but after reboot usb mouse and keyboard do not work on the configuration, i.e computer name screen. I tried a usb to ps2 adapter, and 2 different ps2 keyboards, one brand new, nothing works. Does this mean I need to return the motherboard as ps2 port not working, or is this still a driver issue? TIA for any and all responses!