Asus a3000 turns itself off

Uncontrolled off a laptop
If your daily work laptop automatically turn off for no apparent reason, it may be a sign of overheating of computer components. To prevent this constantly turning off the computer and overheating, that can damage the motherboard you must firstly clean the computer fan, it is worthy (if it is possible) to mount an additional fan in the computer. You should also think about the additional cooling system for the processor.