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Switches:
1.
POWER: Power Switch
2.
ALARM: ACPI Sleep Switch
3.
RESET: Reset Switch
Front Panel LED PCB Pin Assignments
JP4 header
1 Power LED (Green) +
2 X
3 X Key
4 Fan Fail LED (Red) +
5 Power LED (Black)
6 Fan Fail LED Ground (black)
7 Hard drive LED (Yellow) +
8 Power Fail LED(Red) +
9 Hard drive LED (Black)
10 Power Fail LED Ground (black)
11 Power Switch (Green) +
12 NIC Activity LED (Yellow) +
13 Power Switch Ground (Black)
14 NIC Activity LED Ground (Black)
15 Reset Switch (White)
16 X
17 Reset Switch Ground (Black)
18 X
19 ACPI Switch (White)
20 X
21 ACPI Switch Ground (Black)
22 X
23 X
24 X
25 Overheat LED (Red) +
26 Overheat LED Ground (black)
27 X
28 Speaker (Red)
29 X
30 X
31 X
32 X
33 X
34 Speaker Ground (black)
Pin 1
GND
Pin 1
GND
Pin 1
GND
JP5 : Device 1 LED
JP6 : Device 2 LED
{ Device 1,2,3 LED for system device LED }
JP7 : Device 3 LED
LEDs and Power and Reset wiring connections:
1.
PWR LED : Pin 1 and Pin5 for System Power LED.
2.
HDD
: Pin 7and Pin 9 for IDE hard drive activity.
3.
PW S
: Pin 11 and Pin 13 for System Power On-Off switch .
4.
Reset
: Pin 15 and Pin 17 for system reset switch.
5.
Switch
: Pin 19 and Pin 21 for ACPI switch. ( momentary switch)
6.
Fan Fail
: Pin 4 and Pin 6 for system fan fail LED indication.
7.
Power Fail : Pin 8 and Pin 10 for Power fault LED indication.*
8.
NIC LED
: Pin 12 and Pin 14 for system Network Activity LED indication.
9.
O.H.
: Pin 25 and Pin 26 for system Overheat LED indication.
10.
Speaker
: Pin 28 and Pin 34 for system Speaker.
* Power fail LED: It can be connected to power supply Power LED (Green/Black). Please check the ATX
Wiring harness diagram.