ADLINK Technology NuPRO-842 Series, User Manual

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26 Jumpers and Connectors
selected through the BIOS menu. However, some options still
need to be configured by jumpers.
Clear CMOS
The CMOS RAM data for real time clock (RTC) contains the date /
time and password information. The button cell battery powers the
CMOS when the system is powered off.
To erase the CMOS RAM data:
1. Shut down the system.
2. Short pins 1 and 2 of JP6. Then, replace the jumper
back to normal operation position.
3. Turn the power on.
Description Location
Clear CMOS JP6
FSB Frequency Selection JP8
COM2 Function Selection JP1-3
COM2 RS-485+ Function Selection JP4
Table 2-18: Jumpers Definitions
RTC status JP6 NuPRO-842 JP6
Normal 1-2
Clear CMOS 2-3
Table 2-19: Clear CMOS RTC RAM