Asus PRIME X370-PRO, User Manual, Page: 29 / 99

ASUS PRIME X370-PRO
1-15
Chapter 1
8. System panel connector (20-5 pin PANEL)
This connector supports several chassis-mounted functions.
PRIME X370-PRO
PRIME X370-PRO System panel connector
* Requires an ATX power supply
PLED+ PLED- PWRBTN# GND +5V GND GND Speaker
HDD_LED-
GND
RSTCON#
NC
PLED+
PLED-
PIN 1
+PWR_LED-
+PWR_LED-
SPEAKER
PANEL
+HDD_LED-
PWR_SW
RESET
• System power LED (4-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 flashes 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 PWR_SW)
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
operating system settings. Pressing the power switch 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.