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2.2.2.4
Front Panel Header
This section describes the functions of the front panel header. Table 20 lists the signal
names of the front panel header. Figure 12 is a connection diagram for the front panel
header.
Table 20. 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 12. 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.
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
Technical Reference
Description
Front panel green
LED
Front panel yellow
LED
Power switch
Ground
Not connected
49
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