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The front panel design may differ by chassis. A front panel module mainly consists of power switch,
reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your chassis
front panel module to this header, make sure the wire assignments and the pin assignments are
matched correctly.
• PW (Power Switch):
Connectstothepowerswitchonthechassisfrontpanel.Youmaycongurethewaytoturnoffyour
system using the power switch (refer to Chapter 2, "BIOS Setup," "Settings\Platform Power," for more
information).
• SPEAK (Speaker):
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 (Hard Drive Activity LED):
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 (Reset Switch):
Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer
ifthecomputerfreezesandfailstoperformanormalrestart.
• CI (Chassis Intrusion Header):
Connectstothechassisintrusionswitch/sensoronthechassisthatcandetectifthechassiscoverhas
beenremoved.Thisfunctionrequiresachassiswithachassisintrusionswitch/sensor.
• NC: No connection.
• PLED/PWR_LED (Power LED):
Connects to the power status indicator on the chassis front panel. The LED
isonwhenthesystemisoperating.TheLEDisoffwhenthesystemisinS3/
S4 sleep state or powered off (S5).
System Status LED
S0 On
S3/S4/S5 Off
12) F_PANEL (Front Panel Header)
Connect one end of the front panel extension cable to this header and connect the power switch, reset
switch,speaker,chassisintrusionswitch/sensorandsystemstatusindicatoronthechassisfrontpanelto
the other end. Note the positive and negative pins before connecting the cables. .
+' 5(6&,3:5B/('
Front panel
extension cable
Power LED
1
2
19
20
CI-
CI+
PWR_LED+
PLED-
PW-
SPEAK+
SPEAK-
PLED+
PW+
HD-
RES+
HD+
RES-
Hard Drive
Activity LED
Reset
Switch
Chassis Intrusion
Header
Power Switch
Speaker
PWR_LED-
PWR_LED-
Power LED
NC
NC