Intel Desktop Board D955XBK Technical Product Specification 
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Table 18.  ATAPI CD-ROM Connector (Optional) 
Pin Signal Name 
1  Left audio input from CD-ROM 
2  CD audio differential ground 
3  CD audio differential ground 
4  Right audio input from CD-ROM 
 
Table 19.  Front Panel Audio Connector 
Pin Signal Name  Pin Signal Name 
1  Port E [Port 1] Left Channel  2  Ground 
3  Port E [Port 1] Right Channel  4  Presence# (dongle present) 
5  Port F [Port 2] Right Channel  6  Port E [Port 1] Sense return  
(jack detection) 
7  Port E [Port 1] and Port F [Port 2]  
Sense send (jack detection)  
8 Key 
9  Port F [Port 2] Left Channel  10  Port F [Port 2] Sense return 
(jack detection) 
# 
INTEGRATOR’S NOTE 
The front panel audio connector is colored yellow. 
Table 20.  Front Chassis Fan and Rear Chassis  
Fan Connectors 
Pin Signal Name 
1 Control 
2  +12 V  
3 Tach 
 
Table 21.  Processor Fan Connector and  
Auxiliary Rear Fan Connector 
Pin Signal Name 
1 Ground 
2 +12 V 
3 FAN_TACH 
4 FAN_CONTROL