Installing and Replacing Desktop Board Components

Chassis Intrusion Header

Figure 23, E shows the location of the chassis intrusion header. This header can be connected to a mechanical switch on the chassis to detect if the chassis cover is removed.

Table 10 shows the pin assignments and signal names for the chassis intrusion header.

Table 10. Chassis Intrusion Header Signal Names

Pin Description

1Intruder

2Ground

USB 2.0 Headers

Figure 23, G shows the location of the USB 2.0 headers. Table 11 shows the pin assignments and signal names for each USB 2.0 header. Each USB header can be used to connect two USB devices.

Table 11. 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

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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Intel BLKDX58SO2 manual USB 2.0 Headers, Chassis Intrusion Header Signal Names, USB 2.0 Header Signal Names