Connection Diagram For Front Panel Connector - Intel D945PLNM Specification

2.7.2.4 Front Panel Connector
This section describes the functions of the front panel connector. Table 24 lists the signal names of
the front panel connector. Figure 14 is a connection diagram for the front panel connector.
Table 24. Front Panel Connector
Pin Signal
Hard Drive Activity LED
1 HD_PWR
3 HAD#
5 Ground
7 FP_RESET#
9 +5 V
Dual-colored
Power LED
+
−
2.7.2.4.1 Hard Drive Activity LED Connector [Yellow]
Pins 1 and 3 [Yellow] 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
•
An IDE hard drive connected to an onboard IDE connector
In/Out Description
[Yellow]
Out Hard disk LED pull-up
(750 Ω) to +5 V
Out Hard disk active LED
Reset Switch
[Purple]
Ground
In Reset switch
Power
Power
N/C
Power
Switch
Single-colored
Power LED
−
+
Figure 14. Connection Diagram for Front Panel Connector
Pin Signal In/Out
Power LED
[Green]
2 HDR_BLNK_ Out
GRN
4 HDR_BLNK_ Out
YEL
On/Off Switch
[Red]
6 FPBUT_IN In
8 Ground
Not Connected
10 N/C
9 +5 V DC
8 7
Reset
Switch
6 5
−
4 3
+
2 1
Technical Reference
Description
Front panel green
LED
Front panel yellow
LED
Power switch
Ground
Not connected
Hard Drive
Activity LED
OM17000
53