Product Guide

Updating the BIOS

Chassis Intrusion Header

Figure 23, E shows the location of the chassis intrusion header. You can connect this

header to a mechanical switch on the chassis to detect if the chassis cover is removed.

Table 6 shows the pin assignments and signal names for the chassis intrusion header.

Table 6. Chassis Intrusion Header Signal Names

Pin Description

1 Intruder

2 Ground

IEEE 1394a Header

Figure 23, F shows the location of the IEEE 1394a header. Table 7 shows the pin

assignments and signal names for the IEEE 1394a header.

Table 7. 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