MSI Keeper 945GM V1.0 - Manual (Page 36)

2-23
Hardware Setup
Jumpers
Clear CMOS Jumper: CLR_CMOS0
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_CMOS0 (Clear CMOS Jumper ) to clear data.
CLR_CMOS0
1
Clear Data
1 3
Keep Data
1 3
Important
You can clear CMOS by shorting 2-3 pin while the system is off. Then return
to 1-2 pin position. Avoid clearing the CMOS while the system is on; it will
damage the mainboard.