Datasheet

Technical Reference

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