Pin Definition

1-10
Motherboard Pin Denition
16. System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
PIN 1
PWR BTN
PWR_LED+ PWR_LED- PWR GND
HDD_LED+
HDD_LED-
Ground
HWRST#
(NC)
F_PANEL
+PWR LED
+HDD_LED RESET
• SystempowerLED(2-pinPWR_LED)
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HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect the
HDD Activity LED cable to this connector. The HDD LED lights
uporasheswhendataisreadfromorwrittentotheHDD.
• ATXpowerbutton/soft-offbutton(2-pinPWR_BTN)
This 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.
• SystempowerLED(2-pinPWR_LED)
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HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect
the HDD Activity LED cable to this connector. The HDD
LEDlightsuporasheswhendataisreadfromorwrittento
the HDD.
• Systemwarningspeaker(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.
• ATXpowerbutton/soft-offbutton(2-pinPWRSW)
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 button for more than four seconds while the
system is ON turns the system OFF.
• 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.
System panel connector (20-8 pin PANEL)
This connector supports several chassis-mounted functions.
PIN 1
+PWR_LED-
SPEAKER
PWR_LED+ PWR_LED- +5V Ground Ground Speaker
HDD_LED+
HDD_LED-
PWR
Ground
Reset
Ground
F_PANEL
+HDD_LED- PWRSW RESET