Intel BLKDG43NB Product Specification - Page 50

Front Panel Header

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Intel Desktop Board DG43NB Technical Product Specification 2.2.2.5 Front Panel Header This section describes the functions of the front panel header. Table 24 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 24. Front Panel Header In/ Pin Signal Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 to +5 V 3 HDA# Out Hard disk active LED 4 Reset Switch 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/ Out Description Power LED HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected Figure 11. Connection Diagram for Front Panel Header 2.2.2.5.1 Hard Drive Activity LED Header Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires one of the following: • A Serial ATA hard drive connected to an onboard Serial ATA connector • A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector 50

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Intel Desktop Board DG43NB Technical Product Specification
50
2.2.2.5
Front Panel Header
This section describes the functions of the front panel header.
Table 24 lists the signal
names of the front panel header.
Figure 11 is a connection diagram for the front panel
header.
Table 24.
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
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
FPBUT_IN
In
Power switch
7
FP_RESET#
In
Reset switch
8
Ground
Ground
Power
Not Connected
9
+5 V
Power
10
N/C
Not connected
Figure 11.
Connection Diagram for Front Panel Header
2.2.2.5.1
Hard Drive Activity LED Header
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is
being read from or written to a hard drive.
Proper LED function requires one of the
following:
•
A Serial ATA hard drive connected to an onboard Serial ATA connector
•
A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector