Clear Cmos Jumper - VIA Technologies EPIA-M920 User Manual

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 35 Figure Figure Figure 35 35 35: CLEAR CMOS jumper diagram : CLEAR CMOS jumper diagram : CLEAR CMOS jumper diagram : CLEAR CMOS jumper diagram
Table Table 30 30: CLEAR CMOS jumper settings : CLEAR CMOS jumper settings
Table Table 30 30 : 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.
Setting Setting Setting Setting Pin 1 Pin 1 Pin 1 Pin 1
Regular (default) Short
Clear CMOS Open
EPIA- - - - M920 EPIA M920 User Manual
EPIA EPIA M920 M920
P P P P in 2 in 2 in 2 in 2 Pin 3 Pin 3 Pin 3 Pin 3
Short Open
Short Short
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