thanks to answer writhziden
in my condition...
all of them running,but except for monitor only...
its still black screen and at rigth bottom yellow colour,
cant do anythink,last try i done was trying pushing numlock button to see are the keyboard's work. had try with 2 keyboard.
i cant get any bios, cant get at startup, cant see anything on screen.
but weird. all fan n HDD is working,already removed any USB drive include mouse, keyboard, portable DVD.
so what i must do on this state?