Connection Diagram For Front Panel Connector; Auxiliary Front Panel Power/Sleep/Message-Waiting Led Connector; Front Panel Connector - Intel D848PMB Specification

2.8.3.1

Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector

Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector.
Table 31. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector
Pin Signal Name
1 HDR_BLNK_GRN
2 Not connected
3 HDR_BLNK_YEL
2.8.3.2

Front Panel Connector

This section describes the functions of the front panel connector. Table 32 lists the signal names
of the front panel connector. Figure 15 is a connection diagram for the front panel connector.
Table 32. Front Panel Connector
Pin Signal
Hard Drive Activity LED
1 HD_PWR
3 HAD#
5 Ground
7 FP_RESET#
9 +5 V
Hard Drive
Activity LED
In/Out
Out
Out
In/Out Description
Out Hard disk LED pull-up
(750 Ω) to +5 V
Out Hard disk active LED
Reset Switch
Ground
In Reset switch
Power
Power

1

3
5
Reset
Switch
7
9
+5 V DC
Figure 15. Connection Diagram for Front Panel Connector
Description
Front panel green LED
Front panel yellow LED
Pin Signal In/Out
Power LED
2 HDR_BLNK_ Out
GRN
4 HDR_BLNK_ Out
YEL
On/Off Switch
6 FPBUT_IN In
8 Ground
Not Connected
10 N/C
Single-colored
Power LED

2

4
6
Power
Switch
8
N/C
Technical Reference
Description
Front panel green
LED
Front panel yellow
LED
Power switch
Ground
Not connected
Dual-colored
Power LED


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