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1-34 Chapter 1: Product introduction
13. System panel connector (20-1 pin PANEL)
This connector supports several chassis-mounted functions.
•
System power LED (PWR_LED)
This 3-pin 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.
•
Hard disk drive activity LED (HD_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity
LED cable to this connector. The IDE LED lights up or ashes when data is
read from or written to the HDD.
•
System warning speaker (SPKR)
This 4-pin connector is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
•
Power/Soft-off button (PWR_BTN)
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.
•
Reset button
(RESET)
This 2-pin connector is for the chassis-mounted reset button for system
reboot without turning off the system power.
M2NBP-VM CSM
®
M2NBP-VM CSM System panel connector
* Requires an ATX power supply.
PANEL
PLED-
PWR
+5V
Speaker
Ground
RESET
Ground
Reset
Ground
Ground
PWR BTN
PLED+
IDE_LED-
IDE_LED+
HD_LED
PWR LED SPKR