Mainboard PM945GC(V2.0)

Clear CMOS Jumper: JBAT

The “Clear CMOS” function is used when you are unable boot your system and need to reset the BIOS settings (CMOS settings) back to the manufacturer’s original settings. This is also a way to reset the system password if you have forgotten it.

 

 

 

 

 

JBAT

Assignment

 

 

 

 

 

Pin 1-2 Closed

Normal (Default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin 2-3 Closed

Clear CMOS Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Close stands for putting a jumper cap onto two header pins.

The following steps explain how to reset your CMOS configurations when you forgot a system password.

1.Turn off your system and disconnect the AC power cable.

2.Set JBAT header to OFF (2-3 Closed).

3.Wait several seconds.

4.Set JBAT header to ON (1-2 closed).

5.Connect the AC power cable and turn on your system.

6.Reset your new password.

Audio Configuration

CD-ROM Audio-In Connector: CDIN

The CD-IN connector is used to attach an audio cable to audio devices such as CD-ROMs, DVD-ROMs etc.

HDMI-SPDIF out Header: HDMI_SPDIF (Optional)

The SPDIF output is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby digital decoder. Use the feature only when your stereo system has digital input function.

HDMI_SPDIF

Pin

Assignment

Pin

Assignment

1

HDMI_SPDIF_OUT

2

GND

14