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2-18
Chapter 2
2.8 Jumper
There is a CMOS RAM on board 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. That battery has
long life time for at least 2 years. If you want to clear the system configuration,
use the JBAT1 (Clear CMOS Jumper ) to clear data. Follow the instructions be-
low to clear the data:
Clear Data
1
3
Keep Data
1
3
Clear CMOS Jumper: JBAT1
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.
