Aplex Technology OPC-5127 - Manual (Page 22)

OPC-5XX7 User Manual 22
2.3 Onboard Jumpers and Port Pin outs
1. JVCCIO
(2.0MM 1X3) PC104+ port voltage selection jumper: select voltage for
PC104+ device
JVCCIO PC104+ VCCIO Voltage
CLOSE 1-2 +3.3V (default)
CLOSE 2-3 +5V
2. JCLR_CMOS
(2.0MM 1X3) CMOS clear jumper: CMOS clear operation will
permanently reset old BIOS settings to factory defaults.
JCLR_CMOS CMOS
CLOSE 1-2 NORMAL (default)
CLOSE 2-3 CLEAR CMOS
Procedures of CMOS clear:
1. Turn off the system and unplug the power cord from the power outlet;
2. To clear the CMOS settings, use the jumper cap to close pins 2 and 3 for about 3 seconds
then reinstall the jumper clip back to pins 1 and 2.
3. Power on the system again;
4. When entering the POST screen, press the key to enter CMOS Setup Utility to load
optimal defaults;
5. After the above operations, save changes and exit BIOS Setup.
3. BAT
(1.25.0MM 1X2) Battery port: a 3.3V battery is embedded to provide power for
CMOS.
PIN# Signal Name
PIN1 VBAT
PIN2 Ground