Intel Intel Desktop Board manual Connecting to the Onboard Audio System, Chassis Intrusion Header

Intel Desktop Board DG35EC Product Guide

Chassis Intrusion Header

Figure 23, H on page 44 shows the location of the chassis intrusion header. This header can be connected to a mechanical switch on the chassis to detect if the chassis cover is removed. Table 11 shows the pin assignments for the chassis intrusion header.

Table 11. Chassis Intrusion Header

Pin Description

1Intruder

2Ground

Connecting to the Onboard Audio System

After installing the RealTek audio driver from the Intel Express Installer CD-ROM, the multi-channel audio feature can be enabled. Figure 24 shows the back panel audio connectors. Table 12 lists the functions of the connectors in the different audio modes.

Figure 24. Back Panel Audio Connectors

Table 12. Back Panel Audio Connector Definition

Connector	2-Channel Function	4-Channel Function	6-Channel Function
A (Blue)	Line in	Left/right rear	Left/right rear
B (Green)	Line out	Left/right front	Left/right front
C (Pink)	Mic in	Mic in	Subwoofer/center
			channel

NOTE

The back panel line out connector is designed to power either headphones or amplified speakers only. Poor audio quality may occur if passive (non-amplified) speakers are connected to this output.

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