Installing and Replacing Desktop Board Components
33
Connecting to the Front Panel Header
Before connecting to the front panel header, observe the precautions in "Before You
Begin" on page 23. See Figure 9, E for the location of the front panel header.
Table 10 shows the pin assignments for t
he front panel header.
Table 10. Front Panel Header
Pin Signal In/Out Description Pin
Signal In/Out Description
Hard Drive Activity LED Power LED
1 HD_PWR Out
Hard disk LED pull-
up (330 Ω) to +5 V
2 HDR_BLNK_GRN Out
Front panel
green LED
3 HDA# Out
Hard disk active
LED
4 HDR_BLNK_YEL Out
Front panel
yellow LED
Reset Switch On/Off Switch
5 Ground Ground 6 SWITCH_ON# In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 N/C No pin
Connecting to the S/PDIF Header
Figure 9, G shows the location of the S/PDIF output header. Table 11 shows the pin
assignments for the header.
Table 11. S/PDIF Header
Pin Signal Name
1 Ground
2 S/PDIF
3 Key (no pin)
4 + 5 VDC
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