Answer

It looks like that the user over-clocked the notebook manually and causes instability to the system with the setting provided. Whenever O.C failed, the system needs about 20~30 seconds time to get fully recovered. There are two methods to recover from the O.C. failure as stated below: 1. Power on the system and wait 20~30 seconds for system to recover from O.C. failed setting.
2. Unplug & Plug battery and AC power.  Press Hot start key then press Power button.

Applicable Models