Hello,
my compaq notebook (cq45 112 au) not booting , also no display, after the power on harddisk led not blink even for a single occurrence , after a few secods the capslock led and numlock led are turns into blinking state . other than the above mentioned problems there is no symptoms to detect (fan is working / no beep sounds/no display-i think no power to screen). Also I failed in booting from a bootable dvd.
Configuration: compaq cq45112 AU/ vista ultimate x64