User`s manual

2-16

MS-9643 Mainboard

Jumpers

Clear CMOS Jumper: JBAT1

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 JBAT1 (Clear CMOS 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.

JPWD1

Clear BIOS Password Jumper: JPWD1

The jumper is used to clear the BIOS password. You can clear BIOS password by

shorting this jumper with a jumper cap while the system is off. Then restart the

system. Be sure to remove the jumper cap to return to normal operation on next boot.

Avoid clearing the password while the system is on; it will damage the mainboard.

Clear Normal

JBAT1

Keep Data Clear Data