Asus PRIME X299 Manual page 38

9. System Panel connector
The System Panel connector supports several chassis-mounted functions.
• System Warning Speaker connector (SPEAKER)
The 4-pin connector allows you to connect the chassis-mounted system warning
speaker. The speaker allows you to hear system beeps and warnings.
• System Power LED connector (PLED)
The 2-pin connector allows you to connect the System Power LED. The System Power
LED lights up when the system is connected to a power source, or when you turn on
the system power, and blinks when the system is in sleep mode.
• Power Button/Soft-off Button connector (PWRSW)
The 3-1 pin connector allows you to connect the system power button. Press the
power button to power up the system, or put the system into sleep or soft-off mode
(depending on the operating system settings).
• Storage Device Activity LED connector (HDD_LED)
The 2-pin connector allows you to connect the Storage Device Activity LED. The
Storage Device Activity LED lights up or blinks when data is read from or written to the
storage device or storage device add-on card.
• Reset button connector (RESET)
The 2-pin connector allows you to connect the chassis-mounted reset button. Press the
reset button to reboot the system.
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