Advantech PCM-4380F-M0A2E, User Manual

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9 Chapter 2
This jumper is used to erase CMOS data and reset system BIOS informa-
tion.
The procedure for clearing CMOS is:
1. Turn off the system.
2. Push clear CMOS bottom and wait for 4 second.
3. Turn on the system. The BIOS is now reset to its default setting
* default setting
Table 2.4: COM2 Setting (J3)
Setting Function
(1-2) RS232
(3-4) RS485
(5-6) RS422
Table 2.5: PCI-VIO Setting (J4)
Setting Function
1-2 +5 V
2-3 +3.3 V
Warning! To avoid damaging the computer, always turn off
the power supply before setting “Clear CMOS.”
Before turning on the power supply, set the
jumper back to “3.0 V Battery On.”
Table 2.6: CMOS clear (S2)
Condition Result
unpressed* Normal
pushed Clear CMOS