I noticed my laptop ASUS ROG STRIX G531GT got shutdown suddenly and restarted then automatically, twice. Both of the time, I was watching movie on KM player and the laptop was running in battery. I used to always plug-in the laptop to the charging socket. But for last few days, I tried to use the laptop on battery (just to test out the battery life). What could be the possible reasons? I recently updated display drivers and audio drivers. Also when the laptop get restarted automatically, the fan runs at full speed. I can't even control the fan speed with Asus armoury crate app.