Asus M5A78LM_LX Owner's Manual download pdf (Page 34)

4. System panel connector (10-1 pin F_PANEL)

This connector supports several chassis-mounted functions.

• System power LED (2-pin PLED)

This 2-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 (2-pin +HDLED)

This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable

to this connector. The HDD Activity LED lights up or ashes when data is read from or

written to the HDD.

• Power/Soft-off button (2-pin PWRBTN)

This 2-pin connector is for the system power button.

• Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system reboot without

turning off the system power.

M5A78L-M LX

PIN 1

PWRBTN

PLED+

PLED-

PWR

GND

IDE_LED+

IDE_LED-

Ground

Reset

F_PANEL

PLED

+HDLED RESET

M5A78L-M LX System panel connector

5. Speaker connector (4- pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warning speaker. The speaker

allows you to hear system beeps and warnings.

M5A78L-M LX

M5A78L-M LX Speaker out connector

+5V

GND

Speaker Out

SPEAKER

PIN 1

Chapter 1: Product introduction1-24

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Asus M5A78LM_LX Owner's Manual Page 34