Intel D975XBX Product Guide

Installing and Replacing Desktop Board Components
41
Front Panel Audio Header
Figure 22, A on page 40 shows the location of the yellow front panel audio header. Table 5 shows
the pin assignments for the front panel audio header.
Table 5. Front Panel Audio Header Signal Names
Pin Signal Name Pin Signal Name
1 Port1L 2 GND
3 Port1R 4 Presence#
5 Port2R 6 Sense1 Ret
7 Sense Send 8 Key (no pin)
9 Port2L 10 Sense2 Ret
IEEE 1394a Header
See Figure 22, C for the location of the blue IEEE 1394a header. Table 6 shows the pin
assignments for the header.
Table 6. IEEE 1394a Header Signal Names
Pin Signal Name Pin Signal Name
1 TPA1+ 2 TPA1-
3 Ground 4 Ground
5 TPA2+ 6 TPA2-
7 +12 V 8 +12 V
9 Key (no pin) 10 Ground
USB 2.0 Headers
See Figure 22, B for the location of the black USB 2.0 headers. Table 7 shows the pin assignments
for the headers.
Table 7. USB 2.0 Header Signal Names
USB Port A USB Port B
Pin Signal Name Pin Signal Name
1 Power 2 Power
3 D- 4 D-
5 D+ 6 D+
7 Ground 8 Ground
9 Key 10 No connect
Note: USB ports may be assigned as needed.

Intel D975XBX Specifications

General

Chipset	Intel 975X
Socket	LGA 775
Memory Type	DDR2
Memory Slots	4
Maximum Memory	8 GB
Form Factor	ATX
RAID Support	RAID 0, 1, 5, 10
USB Ports	8 x USB 2.0
Supported Processors	Intel Pentium 4, Pentium D, Core 2 Duo
Memory Speed	533/667 MHz
Expansion Slots	2 x PCI Express x16, 1 x PCI Express x4, 2 x PCI
Storage Interfaces	4 x SATA 3Gb/s, 1 x PATA
Audio	Intel High Definition Audio
LAN	Gigabit Ethernet