hi all,
my desktop pc doesnt start. when I turn it on, cpu fan starts reving (possibly at highest) and that’s all. nothing else happens, no bios screen or error message/sound.
notes:
– removed the ram module and it doesnt even beep on startup (normally it does)
– power button turns the system on but doesn’t turn it off. pressing 5 or more seconds doesn’t work either. i have to unplug from the mains.
– tried unplugging all components (hdd, optical drive and ram, still unplugged).
– removed bios battery for a bit and put it back on. those didn’t help.
– cpu fan speed doesn’t change, it is constantly at it’s highest.
– when i plug the pc to mains first time (before pressing the power button), cpu fan starts spinning and shortly after it stops. doesnt start until i press the power button.
– when pressed to power button, led that is near power button, flashes slowy and regulary (like 1s on, 1s off).
according to these findings, what do you think causing the problem? I believe it has to be either power supply, cpu or mb.
please help me to identify the problem and resolve it.
thanks
