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Table 25.
SCSI Hard Drive Activity LED
Connector (Optional)
Pin
Signal Name
1
SCSI_ACT#
2
No connect
Table 26.
Serial ATA Connectors
Pin
Signal Name
1
Ground
2
TXP
3
TXN
4
Ground
5
RXN
6
RXP
7
Ground
Table 27.
Processor Fan Connector
Pin
Signal Name
1
Ground
2
+12 V
3
FAN_TACH
4
FAN_CONTROL
2.8.2.1
Chassis Fan Connectors
The D915PCY board has three standard and one optional chassis fan connectors:
•
Front chassis fan
•
Rear chassis fan 1
•
Rear chassis fan 2
•
ATX fan connector (optional)
The D915PCM board has two chassis fan connectors:
•
Front chassis fan
•
Rear chassis fan
Table 28 lists the signal names for the chassis fan connectors. These signal names apply to all
chassis fan connectors for both boards.
Table 28.
Chassis Fan Connectors
Pin
Signal Name
1
Control
2
+12 V
3
Tach
Technical Reference
65
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