User Manual

Installing the Motherboard

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.

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:

ATX_POWER1: ATX 20-pin Power Connector

Pin Signal Name 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_DNU 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)

Pin Signal Name Function

1 VCC3 11 VCC3

2 VCC3 12 -12V

10 +12V 20 VCC

3 GND 13 GND

4 VCC 14 PS-ON#

5 GND 15 GND

6 VCC 16 GND

7 GND 17 GND

8 PWROK 18 -5V

9 5VSB 19 VCC

Pin Signal Name Pin Signal Name