Intel D875PBZ Product Guide - Page 44

Connecting Internal Headers, Connecting the Front Panel Header

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Intel Desktop Board D875PBZ Product Guide Connecting Internal Headers Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on page 27. 3 1 J9J1 A 9 8 7 6 5 4 3 2 1 J8J3 B 10 8 7 6 5 4 3 2 1 J8J1 C Item A B C Description Alternate power/sleep LED Front panel USB 2.0 Figure 13. Location of Internal Headers OM15681 Connecting the Front Panel Header Before connecting the front panel header, observe the precautions in "Before You Begin" on page 27. Figure 13 shows the location of the front panel header. Table 4 shows the pin assignments for the front panel header. Table 4. Front Panel Header (J8J3) Pin Signal In/Out Description Hard Drive Activity LED Pin Signal In/Out Description Power LED 1 HD_PWR Out Hard disk LED pull- 2 HDR_BLNK_GRN Out Front panel green up (330 Ω) to +5 V LED 3 HDA# Out Hard disk active LED 4 HDR_BLNK_YEL Out Front panel yellow LED Reset Switch Power 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 44

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Intel Desktop Board D875PBZ Product Guide
44
Connecting Internal Headers
Before connecting cables to the internal headers, observe the precautions in
“
Before You Begin
”
on
page 27.
OM15681
A
B
1
3
9
8
7
6
5
4
2
1
3
J9J1
C
2
10
8
7
6
5
4
1
3
J8J1
J8J3
Item
Description
A
Alternate power/sleep LED
B
Front panel
C
USB 2.0
Figure 13.
Location of Internal Headers
Connecting the Front Panel Header
Before connecting the front panel header, observe the precautions in
“
Before You Begin
”
on
page 27.
Figure 13 shows the location of the front panel header.
Table 4 shows the pin
assignments for the front panel header.
Table 4.
Front Panel Header (J8J3)
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
Power 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