MSI MS-91E2 - Manual (Page 31)

Hardware Setup
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MS-91E2
2-13
Hardware Setup
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MS-91E2
J
umper
Clear CMOS Jumper: JBAT1
There s a CMOS RAM onboard that has a power supply from an external battery
to keep the data of system configuration. With the CMOS RAM, the system can
automatcally boot OS every tme t s turned on. If you want to clear the system
configuration, set the jumper to clear data.
JBAT1 Normal Clear CMOS
1 1 1
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.