Intel D945GNT/D945GTP Connecting Hi-Speed USB 2.0 Headers, Connecting Ieee 1394a Headers Optional

Installing and Replacing Desktop Board Components

Connecting Hi-Speed USB 2.0 Headers

Before connecting the USB 2.0 headers, observe the precautions in "Before You Begin" on page 27. See Figure 21, D on page 43 for the location of the black USB 2.0 headers.

Table 11 shows the pin assignments for the headers.

Table 11. Hi-Speed 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.

Connecting IEEE 1394a Headers (Optional)

Before connecting the IEEE 1394a headers, observe the precautions in "Before You Begin" on page 27. See Figure 21, E on page 43 for the location of the blue IEEE 1394a headers. Table 12 shows the pin assignments for the headers.

Table 12. 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

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