Posted 24 September 2012 - 09:15 AM
So the usb port the keyboard is plugged into works, if you can use the keyboard during BIOS, but you cant use the mouse just yet, until you get to the desktop, so we dont know if that works.
Is your mouse optical, if so, is the red light under it on? <-- This will determine if the usb port is providing power to your mouse.
On your keyboard, does the num/caps/scroll lock lights come on? <-- Also to see if your keyboard is recieving power.
Have you tried plugging them into diff USB ports?
While in the BIOs, is the keyboard light on? <--if yes, and it is not lighting up on your desktop, perhaps your POWER SUPPLY is failing, and can no longer provide power to USB.