Would this cause it to randomly reboot to this screen then.. okie I won't have time till the weekend to look but fingers crossed. I in hind sight should of not built it as I don't use it. Just see the ram I got from Amazon is now £1200 wtf ** Doing this more for me *** Unplugged all usb devices Unplugged 2nd monitor that was connected to onboard Left ethernet conmected Will leave till for an hour then connect devices. ** Hour later connected usb devices to see what happens. I did have my keyboard plugged into the Usb port used for bios updates but doesn't answer the question of what caused the pc to reboot ***