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PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The
LED is on when the system is operating. The LED keeps blinking
when the sys-tem is in S3 sleep state. The LED is off when the system
is in S4 sleep state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The
LED is on when the hard drive is reading or writing data.
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 assign-ments are matched correctly.
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.1 No. 6)
Chassis and Power Fan
Connectors
(4-pin CHA_FAN1)
(see p.1 No. 11)
(3-pin PWR_FAN1)
(see p.1 No. 2)
DUMMY
SPEAKER
1
+5V
DUMMY
FAN_SPEED_CONTROL
CHA_FAN_SPEED
+12V
GND
Please connect the chassis
speaker to this header.
Please connect the fan cable
to the fan connector and
match the black wire to the
ground pin.
FM2A55M-HD+
23
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