IBM G52-72361X2 manual Clear CMOS Jumper JBAT1, 2-21, Hardware Setup

Hardware Setup

Jumper

The motherboard provides the following jumpers for you to set the computer’s function. This section will explain how to change your motherboard’s function through the use of jumpers.

Clear CMOS Jumper: JBAT1

There is a CMOS RAM on board that has a power supply from external battery to keep the system configuration data. With the CMOS RAM, the system can automati- cally boot OS every time it is turned on. If you want to clear the system configuration, use the JBAT1 (Clear CMOS) Jumper to clear data. Follow the instructions below to clear the data:

1

1

3

JBAT1

1

3

Keep Data 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.

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