Installing and Replacing Desktop Board Components
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Front Panel HD Audio Header Figure 11, A shows the location of the front panel audio header. Table 4 shows the pin
assignments for the front panel audio header.
Table 4. Front Panel Audio Header Signal Names for Intel High Definition
Audio
Pin Signal Name Pin Signal Name
1 PORT 1L 2 GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY (no pin)
9 PORT 2L 10 SENSE2_RETURN
To install a cable that connects a front panel audio solution to the front panel audio
header, follow these steps:
1. Observe the precautions in “Before You Begin” on page 21.
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.
Connecting the Hi-Speed USB 2.0 Header Before connecting to the USB 2.0 header, observe the precautions in "Before You
Begin" on page 21. See Figure 11, B on page 30 for the location of the USB 2.0
header.
Table 5 shows the pin assignments for the headers.
Table 5. Hi-Speed USB 2.0 Header Signal Names
USB Port A USB Port B
Pin Signal Name Pin Signal Name
1 Power 2 Power
3 D- 4 D-
5 D+ 6 D+
7 Ground 8 Ground
9 Key 10 No connect
Note: USB ports may be assigned as needed.