Intel DG33FB manual Connecting to the Front Panel Header, Connecting to the USB 2.0 Headers

Intel Desktop Board DG33FB Product Guide

Connecting to the Front Panel Header

Before connecting to the front panel header, observe the precautions in "Before You Begin" on page 25. See Figure 23, F for the location of the multi-colored front panel header.

Table 9 shows the pin assignments for the front panel header.

Table 9. Front Panel Header

Pin	Description	In/Out	Pin	Description	In/Out
	Hard Drive Activity LED			Power LED
1	Hard disk LED pull-up to +5 V	Out	2	Front panel green LED	Out
3	Hard disk active LED	Out	4	Front panel yellow LED	Out
	Reset Switch			On/Off Switch
5	Ground		6	Power switch	In
7	Reset switch	In	8	Ground
	Power			Not Connected
9	Power	Out	10	No pin

Connecting to the USB 2.0 Headers

Before connecting to the USB 2.0 headers, observe the precautions in "Before You Begin" on page 25. See Figure 23, G for the location of the three USB 2.0 headers. Table 10 shows the pin assignments for each USB 2.0 header. Each USB header can be used to connect two USB devices.

Table 10. USB 2.0 Header Signal Names

	USB Port A
Pin	Signal Name
1	Power (+5 V)
3	D-
5	D+

7Ground

9Key

	USB Port B
Pin	Signal Name
2	Power (+5 V)
4	D-
6	D+
8	Ground
10	No Connection

Note: USB ports may be assigned as needed.

NOTE

Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device.

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