ADLINK IMB-M42H - Manual (Page 23)

Getting Started 13
IMB-M42H
2.5 Jumpers
Clear CMOS (CLCMOS)
The CMOS RAM data contains the Date/Time and BIOS setting
information. CMOS is powered by an onboard button cell battery.
To erase the CMOS RAM data:
1. Power down and disconnect power from the system.
2. Short pins 2-3 on JP1.
3. Reconnect power and power up the system.
4. After power up, remove the jumper cap from pins 2-3
and reinstall it to pins 1-2.
AT/ATX Mode Jumper (PSON1)
RTC status Connection CLCMOS
Normal 1 – 2
Clear CMOS 2 – 3
Pin # Signal
1 PSON_AT
2 FRP_PANSWUN
3 NC
Status Connection JCLRT_C2
AT Mode 1 – 2
ATX Mode 2 – 3 (default)