Installing and Replacing Desktop Board Components
33
Connecting Front Panel Headers
Figure 11 shows the location of the front panel headers.
OM14820
A
C
D
B
2
1
3
4
5
6
7
9
10
9
8
7
6
5
4
2
1
2
1
3
4
5
6
7
10
8
3
Item Description Item Description
A Front panel audio C Front panel
B Front panel USB 2.0 D Alternate power/sleep LED
Figure 11. Front Panel Headers
Connecting the Front Panel Header
Before connecting the front panel header, observe the precautions in “Before You Begin” on
page 23. Figure 11, C shows the location of the front panel header.
Table 4 shows the pin assignments for the front panel header.
Table 4. Front Panel Header (J8H2)
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
9 +5 V Out Power 10 N/C Not connected
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