Installing and Replacing Desktop Board Components
45
HD Audio Link Header
See Figure 22, A for the location of the HD Audio Link header. Table 5 shows the pin
assignments for the header.
Table 5. HD Audio Link Header Signal Names
Pin Signal Name Pin Signal Name
1 BCLK 2 Ground
3 RST# 4 DVDD_IO
5 SYNC 6 Ground
7 SDO 8 3.3V_DVDD_CORE
9 SDI0 10 +12 V
11 SDI1 12 Key
13 No Connection 14 3.3V_DUAL
15 No Connection 16 Ground
S/PDIF Connector
Figure 22, B shows the location of the S/PDIF connector. Table 6 shows the pin
assignments and signal names for the S/PDIF connector.
Table 6. S/PDIF Connector Signal Names
Pin Description
1 Vcc
2 S/PDIF Out
3 Ground
Chassis Intrusion Header
Figure 22, C on page 44 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 7 shows the pin assignments for
the
chassis intrusion header.
Table 7. Chassis Intrusion Header Signal Names
Pin Description
1 Intruder
2 Ground
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