Specifications

Installing the Motherboard

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.

Front Panel Header

The front panel header (PANEL1) provides a standard set of switch and LED headers

commonly found on ATX or micro ATX cases. Refer to the table below for information:

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 SATA (hard drive activity LED) connector.

Pin Signal Function Pin Signal Function

1 HD_LED_P Hard disk LED(+) 2 FP PWR/SLP *MSG LED(+)

3 HD_LED_N Hard disk LED(-)

5 RST_SW_N Reset Switch(-)

7 RST_SW_P Reset Switch(+)

9 RSVD Reserved

4 FP PWR/SLP *MSG LED(-)

6 PWR_SW_P Power Switch(+)

8 PWR_SW_N Power Switch(-)

10 Key No pin

* MSG LED (dual color or single color)