Jumpers; Clear Cmos Jumper - VIA Technologies VB7009 User Manual

3. 3. 3. 3. Jumpers

Jumpers Jumpers Jumpers

3.1. Clear CMOS Jumper

The onboard CMOS RAM stores system configuration data and has an onboard battery power
supply. To reset the CMOS settings, set the jumper on pins 2 and 3 while the system is off. Return
the jumper to pins 1 and 2 afterwards. Setting the jumper while the system is on will damage the
mainboard. The default setting is on pins 1 and 2.
Figure 30 Figure Figure Figure 30 30 30: CLEAR CMOS jumper : CLEAR CMOS jumper : CLEAR CMOS jumper : CLEAR CMOS jumper
Table Table Table Table 27 27 27 27: CLEAR CMOS jumper settings : CLEAR CMOS jumper settings : CLEAR CMOS jumper settings : CLEAR CMOS jumper settings
Note: Note:
Note: Note:
Except when clearing the RTC RAM, never remove the cap from the CLEAR_CMOS jumper default position. Removing the cap
will cause system boot failure. Avoid clearing the CMOS while the system is on; it will damage the mainboard.
1
Setting Setting Pin 1 Pin 1
Setting Setting Pin 1 Pin 1
Regular (default) On
Clear CMOS Off
Pin 2 Pin 2 Pin 3 Pin 3
Pin 2 Pin 2 Pin 3 Pin 3
On Off
On On
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