User Manual

Connectors & Jumpers 19

MI-220

System Panel Connector (F_PANEL1)

Clear CMOS (JCMOS1)

The CMOS RAM data contains the date / time and BIOS setting

information. CMOS is powered by the onboard button cell battery.

To erase the CMOS RAM data: (1) Unplug the MI-220; (2) short

the JP1 pin 2-3; (3) turn the power on. After power on, remove the

jumper cap from pin 2-3 and reinstall it to pin 1-2.

Pin # Signal Function Pin Group

1 WDSPK Speaker signal

Chassis Speaker

3NC

5NC

7P5V Power

9NC

11 GND Ground

Key Lock

13 KEYLOCK Keyboard lock

15 PLED Power LED signal

Power LED

17 NC

19 P5V Power LED pull-up

2 GND Ground

RESET Button

4 RESETBT RESET signal

6NC

8 GND Ground

Power On Button

10 POWERBT Power-on signal

12 NC

14 NC

16 HDDLED Hard Disk LED signal

Hard Disk LED

18 P3V3 Hard Disk LED pull-up

20 NC

RTC status Connection JP5

Normal 1 – 2

Clear CMOS 2 – 3

19 20