Technical Reference
47
Table 16. Front and Rear Chassis Fan Headers
Pin Signal Name
1 Control
2 +12 V
3 Tach
Table 17. Processor Fan Header
Pin Signal Name
1 Ground
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
Table 18. Front Panel Audio Header for Intel 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 19. 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