beautypg.com

System panel connector (20-pin panel), System power led lead (3-1 pin pled), System warning speaker lead (4-pin spkr) – Asus A7V8X-X User Manual

Page 30: System management interrupt lead (2-pin smi), Atx power switch/soft-off switch lead (2-pin pwr), Reset switch lead (2-pin reset), Hard disk led (2-pin ide_led), 20 chapter 1: motherboard information

background image

1-20

Chapter 1: Motherboard Information

12. System panel connector (20-pin PANEL)

This connector accommodates several system front panel functions.

System Power LED Lead (3-1 pin PLED)

This 3-1 pin connector connects to the system power LED. The LED lights up
when you turn on the system power, and blinks when the system is in sleep
mode.

System Warning Speaker Lead (4-pin SPKR)

This 4-pin connector connects to the case-mounted speaker and allows you to
hear system beeps and warnings.

System Management Interrupt Lead (2-pin SMI)

This 2-pin connector allows you to manually place the system into a suspend
mode, or “green” mode, where system activity is instantly decreased to save
power and to expand the life of certain system components. Attach the case-
mounted suspend switch to this 2-pin connector.

ATX Power Switch/Soft-off Switch Lead (2-pin PWR)

This connector connects a switch that controls the system power. Pressing the
power switch turns the system between ON and SLEEP, or ON and SOFT
OFF, depending on the BIOS or OS settings. Pressing the power switch while
in the ON mode for more than 4 seconds turns the system OFF.

Reset Switch Lead (2-pin RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting
the system without turning off the system power.

Hard Disk LED (2-pin IDE_LED)

This 2-pin connector connects to the front panel HD LED and lights up on
every read/write activity of any of the disc drives connected to the primary or
secondary IDE slots.

A7V8X-X

®

A7V8X-X System Panel Connectors

*

Requires an ATX power supply.

PLED-

Ground

PWR

+5V

Speaker

Speaker
Connector

Power LED

Ground

Reset SW

SMI Lead

ExtSMI#

Ground

Reset

Ground

Ground

ATX Power
Switch*

PLED+

IDE_LED-

IDE_LED+

IDE_LED