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Chapter 3: Motherboard Connections
External Speaker
The JD1 header is for the external speaker. If you wish to use an external speaker, connect
its cable to pins 1-4.
External Speaker Connector
Pin Definitions
Pin Setting
Definition
Pins 1-4
Speaker
Disk-On-Module Power Connector
The Disk-On-Module (DOM) power connector at JSD1 provides 5V power to a solid-state
DOM storage device connected to one of the SATA ports.
DOM Power
Pin Definitions
Pin#
Definition
1
5V
2
Ground
3
Ground
DOM Power Pin Layout
1 2 3
Standby Power
The Standby Power header is located at JSTBY1 on the motherboard.
Standby Power
Pin Definitions
Pin#
Definition
1
+5V Standby
2
Ground
3
No Connection
Audio Front Panel Header
A 10-pin audio header located on the motherboard allows you to use the onboard sound chip
(ALC888S) for audio function. Connect an audio cable to the this header to use this feature.
Audio Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
Microphone_Left
2
Audio_Ground
3
Microphone_Right
4
Audio_Detect
5
Line_2_Right
6
Ground
7
Jack_Detect
8
Key
9
Line_2_Left
10
Ground