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Chapter 4: Motherboard information
4-16
14. System panel connector (20-1 pin PANEL1)
This connector accommodates several system front panel functions.
• 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.
PR-DLS533
PR-DLS533 System Panel Connectors
PLED
MLED
PWR
+5 V
Keylock
+5V
Speaker
Speaker
Connector
Power LED
Ground
+5 V
Reset SW
Message LED
Ground
Reset
IDELED+
IDELED-
Ground
Keyboard Lock
ATX Power
Switch*
1
11
10
20