Connection Diagram For Front Panel Header; Front Panel Header - Intel DX79TO Specification

Intel Desktop Board DX79TO Technical Product Specification
2.2.2.4

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 13 is a connection diagram for the front panel
header.
Table 24. Front Panel Header
Pin Signal
Hard Drive Activity LED
1 HD_PWR
3 HDA#
Reset Switch
5 Ground
7 FP_RESET#
Power
9 +5 V
Figure 13. Connection Diagram for Front Panel Header
2.2.2.4.1 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 a SATA hard
drive or optical drive connected to an onboard SATA connector.
52
In/
Out Description
Out Hard disk LED
pull-up to +5 V
Out Hard disk active
LED
Ground
In Reset switch
Power
In/
Pin Signal Out
Power LED
2 HDR_BLNK_GRN Out
4 HDR_BLNK_YEL Out
On/Off Switch
6 FPBUT_IN In
8 Ground
Not Connected
10 N/C
Description
Front panel green
LED
Front panel yellow
LED
Power switch
Ground
Not connected