MSI G31M4 Series Manual page 21

Clear CMOS Jumper: JBAT1
There is a CMOS RAM onboard that has a power supply from an external battery to keep
the data of system configuration. W ith 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
jumper to clear data.
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.
3
1
1
Keep Data
3
1
Clear Data
En-13