14.System panel connector (20-1 pin PANEL1)

This connector accommodates several system front panel functions.

Keyboard Lock

Power LED

+5 V

PLED Keylock Ground

11

Speaker Connector

+5V IDELED+ IDELED- Speaker

20

1

MLED

+5 V

MessageLED

PR-DLS533

PR-DLS533 System Panel Connectors

 

10

PWR Ground

Reset Ground

Reset SW

ATX Power

Switch*

•System power LED (2-pin PLED)

These leads connect to the system power LED on the front panel using a cable. The LED lights up when you turn on the system power.

•Message LED (2-pin MLED)

These leads connect to the message LED on the front panel. The LED indicates receipt of messages from a fax/modem. The normal status of this LED is OFF when there is no incoming data signal. The LED blinks when data is received. The system message LED feature requires an ACPI operating system and driver.

•System speaker LED (4-pin SPEAKER)

These leads connect to the chassis-mounted speaker.

•ATX power button/ Soft-off switch (2-pin PWRBTN)

These leads connect 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 (2-pin RESET)

These leads connect to the reset switch on the front panel using a cable for rebooting the system without turning off the system power.

•Keyloack (2-pin KEYLOCK)

These leads connect to the chassis-mounted switch to allow use of the keyboard lock feature.

4-16

Chapter 4: Motherboard information