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Connecting to the HD Audio Link Header
See Figure 20, A for the location of the HD Audio Link header. Table 4 shows the pin
assignments for the header.
Table 4. HD Audio Link Header Signal Names
Pin
Signal Name
1
BCLK
3
RST
5
SYNC
7
SDO
9
SDI
11
No Connection
13
No Connection
15
No Connection
Installing a Front Panel Audio Solution for Intel
Definition Audio
Figure 20, B on page 40 shows the location of the yellow front panel audio header.
Table 5 shows the pin assignments for the front panel audio header.
Table 5. Front Panel Audio Header Signal Names for Intel High Definition
Audio
Pin
Signal Name
1
PORT 1L
3
PORT 1R
5
PORT 2R
7
SENSE_SEND
9
PORT 2L
To install the cable that connects the front panel audio solution to the front panel
audio header, follow these steps:
1. Observe the precautions in "Before You Begin" on page 25.
2. Turn off all peripheral devices connected to the computer. Turn off the computer
and disconnect the AC power cord.
3. Remove the cover.
4. Install a correctly keyed and shielded front panel audio cable.
NOTE
Some chassis still use a front panel audio solution based on the AC '97 audio
specification. Refer to Table 6 below to connect an AC '97 front panel solution to the
front panel audio header on the board. The front panel audio jacks will need to be
manually configured for microphone or line out functionality in the Intel
application.
Installing and Replacing Desktop Board Components
Pin
Signal Name
2
Ground
4
3.3V/1.5V I/O
6
Ground
8
3.3V_Core
10
+12V
12
Key
14
3.3V/1.5V STBY
16
Ground
Pin
Signal Name
2
GND
4
PRESENCE#
6
SENSE1_RETURN
8
KEY (no pin)
10
SENSE2_RETURN
®
High
Audio Studio
®
41
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