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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 S1 sleep state. The LED is off when the system
is in S3/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.2 No. 4)
Chassis Fan Connector
(4-pin CHA_FAN1)
(see p.2 No. 6)
CPU Fan Connectors
CPU_FAN_SPEED
(4-pin CPU_FAN1)
(see p.2 No. 1)
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
(3-pin CPU_FAN2)
(see p.2 No. 2)
ASRock FM2A75M-ITX Motherboard
manuals search engine
Please connect the chassis
1
SPEAKER
speaker to this header.
DUMMY
+5V DUMMY
Please connect the fan cable
to the fan connector and
GND
+12V
match the black wire to the
CHA_FAN_SPEED
FAN_SPEED_CONTROL
ground pin.
Please connect the CPU fan
FAN_SPEED_CONTROL
cable to the connector and
+12V
match the black wire to the
GND
ground pin.
1 2 3 4
Pin 1-3 Connected
3-Pin Fan Installation
GND
+12V
CPU_FAN_SPEED
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