AMD KM780V user manual Jumper Setting, HDMISPDIFOut header SPDIFOut, Cmos RAM Clear 3-pin Jbat

(11) HDMI_SPDIF_Out header: SPDIF_Out

The SPDIF output is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby digital decoder. Use this feature only when your stereo system has digital input function. Some of the VGA Card need connect SPDIF_IN Connector, so its HDMI Port can make sounds.

HDMI_SPDIF_OUT

SPDIF

GND

1 2

3-3 Jumper Setting

(1) Keyboard/USB function Enabled/Disabled: JP1

JP1	JP1
1-2 Closed KB/USB Power ON Disable (Default)	2-3 Closed KB/USB Power ON Enabled

Keyboard/Mouse & USB Power On Setting

(2) CMOS RAM Clear (3-pin): JBAT

A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2 pins of JPAT to store the CMOS data.

To clear the CMOS, follow the procedure below:

1.Turn off the system and unplug the AC power

2.Remove ATX power cable from ATX power connector

3.Locate JBAT and short pins 2-3 for a few seconds

4.Return JBAT to its normal setting by shorting pins 1-2

5.Connect ATX power cable back to ATX power connector

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