Scsi Hard Drive Activity Led Connector (Optional); Serial Ata Connectors; Processor Fan Connector; Chassis Fan Connectors - Intel BLKD915PBLL - LGA775 800FSB 4DDR2 Audio Lan 1394a SATA Raid ATX 4PCI 10Pack Motherboard Technical Product Specification

Table 22. SCSI Hard Drive Activity LED
Connector (Optional)
Pin Signal Name
1 SCSI_ACT#
2 No connect
Table 23.

Serial ATA Connectors

Pin Signal Name
1 Ground
2 TXP
3 TXN
4 Ground
5 RXN
6 RXP
7 Ground
Table 24.

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 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)
Table 25 lists the signal names for the chassis fan connectors. These signal names apply to all
chassis fan connectors.
Table 25. Chassis Fan Connectors
Pin Signal Name
1 Control
2 +12 V
3 Tach
Technical Reference
63