Intel D845PEBT2 Product Guide - Page 33

Connecting Front Panel Headers

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Installing and Replacing Desktop Board Components Connecting Front Panel Headers Figure 11 shows the location of the front panel headers. 1 2 3 4 A5 6 7 9 10 1 2 3 4 B5 6 7 8 10 9 8 7 C6 5 4 3 2 1 D Item A B Description Front panel audio Front panel USB 2.0 Item C D Description OM14820 Front panel 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 33

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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