Installing and Replacing Desktop Board Components
Installing a Front Panel Audio Solution
Figure 19, D on page 38 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 High Definition Audio
Pin | Signal Name |
|
|
1 | PORT 1L |
|
|
3 | PORT 1R |
|
|
5 | PORT 2R |
|
|
7 | SENSE_SEND |
|
|
9 | PORT 2L |
|
|
Pin | Signal Name |
|
|
2 | GND |
|
|
4 | PRESENCE# |
|
|
6 | SENSE1_RETURN |
|
|
8 | KEY (no pin) |
|
|
10 | SENSE2_RETURN |
|
|
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 23.
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 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 your audio software.
Table 6. AC ’97 Audio Header Signal Names
Pin | Signal Name |
|
|
1 | MIC |
|
|
3 | MIC_BIAS |
|
|
5 | FP_OUT_R |
|
|
7 | AUD_5V |
|
|
9 | FP_OUT_L |
|
|
Pin | Signal Name |
|
|
2 | AUD_GND |
|
|
4 | AUD_GND |
|
|
6 | FP_RETURN_R |
|
|
8 | KEY |
|
|
10 | FP_RETURN_L |
|
|
5.Connect the audio cable to the front panel audio solution.
6.Replace the cover.
To restore back panel audio, follow these steps:
1.Observe the precautions in "Before You Begin" on page 23.
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.Remove the front panel audio cable.
5.Replace the cover.
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