IBM MS-7236 (V2.X) Mainboard G52-72361X2 - Manual (Page 37)

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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. W ith 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:
JBAT1
1
Keep Data
1
3
Clear Data
1
3
Impor tant
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.