1. 关机
2. Set 'clear cmos' to 1-2(3pin clear cmos) / place the jumper onto the 2pin(2 pin clear cmos)
3. press switch(Nothing will happen)
4. Set 'clear cmos' to 2-3 / take off the jumper from the 2 pins
5. switch on computer
6. press 'del' after beep to setup