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1-22 Chapter 1: Product Introduction
9. System panel connector (20-pin PANEL)
This connector supports several chassis-mounted functions.
•
System power LED (3-1 pin PLED)
This connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on
the system power, and blinks when the system is in sleep mode.
• System warning speaker (4-pin SPEAKER)
This connector is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
• Reset button (2-pin RESET)
This connector is for the chassis-mounted reset button for system reboot
without turning off the system power.
• ATX power button/soft-off button (2-pin PWRBTN)
This connector is for the system power button. Pressing the power button
turns the system on or puts the system in sleep or soft-off mode depending
on the BIOS settings. Pressing the power switch for more than four seconds
while the system is ON turns the system OFF.
• System Management Interrupt (2-pin SMI)
This connector is for the chassis-mounted suspend switch that allows you to
manually place the system into a suspend mode, or “green” mode. When in
suspend mode, the system activity is instantly decreased to save power and
to expand the life of certain system components.
• Hard disk drive activity LED (2-pin HDLED)
This connector is for the HDD Activity LED. Connect the HDD Activity LED
cable to this connector. The IDE LED lights up or flashes when data is read
from or written to the HDD.
A7N8X-XE
®
A7N8X-XE System panel connector
* Requires an ATX power supply.
PANEL
PLED-
PWR
+5V
Speaker
Ground
RESET
Ground
Ground
Reset
Ground
Ground
PWRS
EXTSMI
W
PLED+
HD_LED-
EXTSMI
HD_LED+
HD_LED
PLED SPEAKER