chiliGREEN D915PGNL - Manual (Page 74)

Intel Desktop Board D915PGN/D915PSY Technical Product Specification
2.8.2.5 Front Panel Connector
This section describes the functions of the front panel connector. Table 34 lists the signal names of
the front panel connector. Figure 20 is a connection diagram for the front panel connector.
Table 34. Front Panel Connector
Pin Signal In/Out Description Pin Signal In/Out Description
Hard Drive Activity LED
[Yellow]
Power LED
[Green]
1 HD_PWR Out Hard disk LED pull-up
(750
Ω) to +5 V
2 HDR_BLNK_
GRN
Out Front panel green
LED
3 HAD# Out Hard disk active LED 4 HDR_BLNK_
YEL Out Front panel yellow
LED
Reset Switch
[Purple]
On/Off Switch
[Red]
5 Ground Ground 6 FPBUT_IN In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 N/C Not connected
Pu
rp
le
OM17000
Hard Drive
Activity LED
Reset
Switch
+5 V DC N/C
Power
Switch
8
6
4
2
9
7
5
3
1
−
+
Single-colored
Power LED
−
+
Dual-colored
Power LED
+
−
Yel
low
Green
R
ed
Figure 20. Connection Diagram for Front Panel Connector
2.8.2.5.1 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
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