Front Panel Connector - Intel D845GRG Specification

Product Supplement Document for the Intel Desktop Board D845GRG
2.2.3.1

Front Panel Connector

This section describes the functions of the front panel connector. Table 15 lists the signal names
of the front panel connector.
Table 15. Front Panel Connector
Pin Signal
Hard Drive Activity LED
1 HD_PWR
3 HAD#
5 Ground
7 FP_RESET#
9 +5 V
2.2.3.1.1 Hard Drive Activity LED Connector
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. For the LED to function properly, an IDE drive must be connected to
the onboard IDE interface. The LED will also show activity for devices connected to the SCSI
hard drive activity LED connector.
For information about
The SCSI hard drive activity LED connector
2.2.3.1.2 Reset Switch Connector
Pins 5 and 7 can be connected to a momentary SPST type switch that is normally open. When the
switch is closed, the Desktop Board resets and runs the POST.
22
In/Out Description
Out Hard disk LED pull-up
(330 Ω) to +5 V
Out Hard disk active LED
Reset Switch
Ground
In Reset switch
Out Power
Hard Drive
Activity LED
Reset
Switch
+5 V DC
Pin Signal
Power LED
2 HDR_BLNK_
GRN
4 HDR_BLNK_
YEL
On/Off Switch
6 SWITCH_ON# In
8 Ground
10 N/C
1 2
Power
LED
3 4
5 6
Power
Switch
7 8
9
N/C
OM14561
In/Out Description
Out Front panel green
LED
Out Front panel yellow
LED
Power switch
Ground
Not connected
Refer to
Section 2.2.2.3 page 19