Installing and Replacing Desktop Board Components
43
Connecting to the Alternate Front Panel Power LED
Header
Figure 20, C on page 40 shows the location of the alternate front panel power LED
header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front
panel header. If your chassis has a three-pin power LED cable, connect it to this
header.
Table 8 shows the pin assignments for the front panel header.
Table 8. Alternate Front Panel Power LED Header
Pin Description
In/Out
1
Front panel green LED
Out
2 No
pin
3
Front panel yellow LED
Out
Connecting to the HD Audio Link Header
See Figure 20, A for the location of the HD Audio Link header. Table 9 shows the pin
assignments for the header.
Table 9. HD Audio Link Header Signal Names
Pin Signal
Name
Pin Signal Name
1 BLCK
2 Ground
3 RST
4 3.3V/1.5V
I/O
5 SYNC
6 Ground
7 SDO
8 3.3V_CORE
9 SDI
10
+12V
11
No connection
12
Key (no pin)
13
No connection
14
3.3V/1.5V STBY
15 No
connection
16 Ground
