9) F_PANEL (Front Panel Header)
Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicator
on the chassis to this header according to the pin assignments below. Note the positive and negative pins
before connecting the cables.
The front panel design may differ by chassis. A front panel module mainly consists of power switch,
front panel module to this header, make sure the wire assignments and the pin assignments are
matched correctly.
System Status LED
S0 On
S3/S4/S5 Off
Connects to the power status indicator on the chassis front panel. The LED
is on when the system is operating. The LED is off when the system is in S3/
• PW
• SPEAK
Connects to the speaker on the chassis front panel. The system reports system startup status by issuing
a beep code. One single short beep will be heard if no problem is detected at system startup.
• HD
Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive
is reading or writing data.
• RES
Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer
• CI
Connects to the chassis intrusion switch/sensor on the chassis that can detect if the chassis cover has
been removed. This function requires a chassis with a chassis intrusion switch/sensor.
• PLED/PWR_LED
Power LED
1
2
1920
CI-
CI+
PLED-
SPEAK+
SPEAK-
PLED+
Power LED
HD-
RES+
HD+
RES-
Hard Drive
Activity LED
Reset
Switch
Chassis Intrusion
Header
Power Switch
Speaker
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