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10.
System panel connector (20-1 pin PANEL1)
This connector supports several chassis-mounted functions.
1.
System power LED (3-pin PLED)
2.
Message LED (2-pin MLED)
an abnormal event occurance.
3.
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.
4.
Hard disk drive activity LED (2-pin HD_LED)
5.
Power button/soft-off button (2-pin PWRSW)
This connector is for the system power button. Pressing the power button turns
settings. Pressing the power switch for more than four seconds while the system
is ON turns the system OFF.
6.
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.
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Chapter 2: Hardware information
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