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12
Front Panel Header
The front panel connector (PANEL1) provides a standard set of switch and LED header
commonly found on ATX or micro-ATX cases. Refer to the table below for information:
Pin Signal Name
1
HD_LED_P
3
HD_LED_N
5
RST_SW_N
7
RST_SW_P
9
RSVD
* MSG LED (dual color or single color)
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indication that data
is being read from or written to the hard drive. For the LED to function properly, an IDE
drive should be connected to the onboard IDE interface. The LED will also show activity
for devices connected to the SCSI (hard drive activity LED) connector.
Power/Sleep/Message waiting LED
Connecting pins 2 and 4 to a single or dual-color, front panel mounted LED provides power
on/off, sleep, and message waiting indication.
Reset Switch
Supporting the reset function requires connecting pin 5 and 7 to a momentary-contact
switch that is normally open. When the switch is closed, the board resets and runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a momentary-
contact switch that is normally open. The switch should maintain contact for at least 50 ms
to signal the power supply to switch on or off. The time requirement is due to internal de-
bounce circuitry. After receiving a power on/off signal, at least two seconds elapses before
the power supply recognizes another on/off signal.
Function
Pin Signal Name
Hard disk LED(+) 2
FP PWR/SLP
Hard disk LED(-)
4
FP PWR/SLP
Reset Switch(-)
6
PWR_SW_P
Reset Switch(+)
8
PWR_SW_N
Reserved
10 Key
Installing the Motherboard
Function
*MSG LED(+)
*MSG LED(-)
Power Switch(+)
Power Switch(-)
No pin
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