ive just built a computer for some one i know but after post its giving me a error usb over current detected system will shut down, ive tried disabling usb in bios, disconnected the front panel usb, took the io plate out, updated to the lastest bios but still the same error. i also tried it without the motherboard in the case, i didnt get the error it gave me system disk error so i dont no if its some thing to do with the case or not? can any one help?