VIA Technologies EPIA-NX, User Manual

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Installation
17
J
UMPERS
The mainboard provides jumpers for setting some mainboard functions. This
section will explain how to change the settings of the mainboard functions
using the jumpers.
Clear CMOS: CLEAR_CMOS
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.
Setting 1 2 3
Normal Operation ON ON OFF
Clear CMOS setting OFF ON ON
Caution:
Except when clearing the RTC RAM, never remove the cap on
CLEAR_CMOS1 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.
Inverter Selector: IVDD_SEL
IVDD is the VCC selector jumper to determine the input
voltage of the panel inverter for panel’s back-light.
Setting 1 2 3
+5V ON ON OFF
+12V OFF ON ON
Normal:
1 3 2
Clear:
1 3 2
+5V:
1
3
2
+12V:
1
3
2
IVDD_SEL