Intel AIMB-253 user manual Clear Cmos Jumper CLRCMOS1

2.7.3Clear CMOS Jumper: CLR_CMOS1

There is a CMOS RAM onboard that has a power supply from external battery to keep the data of system configuration. With the CMOS RAM, the system can automatically boot OS every time it is turned on. If you want to clear the system configuration, set the CLR_CMOS1 (Clear CMOS Jumper ) to clear data.

	1	1	1
	CLR_CMOS1	3	3
		Clear Data	Keep Data
Note	You can clear CMOS by shorting 1-2 pin while the system is
	off. Then return to 2-3 pin position. Avoid clearing the CMOS
	while the system is on; it will damage the mainboard.

27 Chapter 2 Hardware Setup