25.12.2015 18:19, jdd пишет:
Le 25/12/2015 14:56, Andrei Borzenkov a écrit :
Try to turn it off, remove battery and leave it for some time.
it's a desktop, no battery :-(
In this case try removing coin battery to clear NVRAM; may be your motherboard has some other means (DIP switches, jumper).