1.
Power Drain ( to release electricity from the motherboard before working on it )
- Turn off you computer.
- Unplug the power cable of your computer .
- Press the power button for straight 15 seconds and release.
- Plug back the power cable and try Turning On your computer.
2.
Reset CMOS
In most cases No POST is caused by your computer's CMOS settings being corrupted.
Resetting the
CMOS to defaults will cure this, and possibly allow your computer to POST
Locate the CMOS battery and/or the "reset CMOS jumper" on your motherboard (unplug/replug or remove/reconnect)
Following the reset CMOS procedure (usually shorting two pins, with CMOS battery out)
Your CMOS settings will be reset, hopefully allowing your computer to startup (or POST)
