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Installation Instructions
Audio Interface(F_AUDIO)
For the mainboard supporting ALC655, The audio interface provides two kinds of audio
output choices: the FrontAudio and the RearAudio. Their priority level is as sequence.
When the FrontAudio is available, the RearAudio( in-case speakers ) will be cut off. An
onboard amplifier is provided for the earphone. When the FrontAudio is absent, Pin5 and
Pin6, Pin9 and Pin10 must be short connected.
For the mainboard supporting ALC880, please use HDA front audio panel for F_AUDIO
function.
F_AUDIO
(for AC'97)
Pin
Symbol
No.
1
AUD_MIC
3
AUD_MIC_BIAS
5
AUD_FPOUT_R
7
NC
9
AUD_FPOUT_L
F_AUDIO
(for HDA)
Pin
Symbol
No.
1
F_MIC_ L
3
F_MIC_R
5
HP_ R
7
SENSE_SEND
9
HP_L
14
1
2
3
4
5
6
8
7
9
10
Pin
Symbol
No.
2
AUD_GND
4
AUD_VCC
6
AUD_RET_R
8
(Cut away)
10
AUD_RET_L
1
2
3
4
5
6
8
7
9
10
Pin
Symbol
No.
2
GND
4
PRESENCE#
6
SENSE1_RETURN
8
(Cut away)
10
SENSE2_RETURN
P5I945P(G)
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