Intel D975XBX manual Front Panel Audio Header, Ieee 1394a Header, USB 2.0 Headers

Installing and Replacing Desktop Board Components

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
1	Port1L
3	Port1R
5	Port2R

7Sense Send

9Port2L

Pin	Signal Name
2	GND
4	Presence#
6	Sense1 Ret

8Key (no pin)

10Sense2 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
1	TPA1+
3	Ground
5	TPA2+
7	+12 V
9	Key (no pin)

Pin	Signal Name
2	TPA1-
4	Ground
6	TPA2-

8+12 V

10Ground

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
Pin	Signal Name
1	Power
3	D-
5	D+

7Ground

9Key

	USB Port B
Pin	Signal Name
2	Power
4	D-
6	D+
8	Ground
10	No connect

Note: USB ports may be assigned as needed.

41