Intel Desktop Board DQ45CB Technical Product Specification
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2.2.2.1 Signal Tables for the Connectors and Headers
Table 12. HD Audio Link Header
Pin Signal Name Pin Signal Name
1 BCLK 2 Ground
3 RST# 4 DVDD IO
5 SYNC 6 Ground
7 SDO 8 3.3 V DVDD CORE
9 SDI0 10 +12 V
11 SDI1 12 Key (no pin)
13 Not connected 14 3.3 V DUAL
15 Not connected 16 Ground
Table 13. Front Panel Audio Header for HD Audio
Pin Signal Name Pin Signal Name
1 [Port 1] Left channel 2 Ground
3 [Port 1] Right channel 4 PRESENCE# (Dongle present)
5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN
7 SENSE_SEND (Jack detection) 8 Key (no pin)
9 [Port 2] Left channel 10 [Port 2] SENSE_RETURN
Table 14. Front Panel Audio Header for AC ’97 Audio
Pin Signal Name Pin Signal Name
1 MIC 2 AUD_GND
3 MIC_BIAS 4 AUD_GND
5 FP_OUT_R 6 FP_RETURN_R
7 AUD_5V 8 KEY (no pin)
9 FP_OUT_L 10 FP_RETURN_L
Table 15. Serial ATA Connectors
Pin Signal Name
1 Ground
2 TXP
3 TXN
4 Ground
5 RXN
6 RXP
7 Ground
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