ASRock FM2A55M-HD Quick Installation Guide - Page 24

PLED System Power LED, HDLED Hard Drive Activity LED

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FM2A55M-HD+ 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) DUMMY SPEAKER 1 +5V DUMMY Please connect the chassis speaker to this header. Chassis and Power Fan Connectors FAN_SPEED_CONTROL (4-pin CHA_FAN1) CHA_FAN_SPEED (see p.1 No. 11) +12V GND Please connect the fan cable to the fan connector and match the black wire to the ground pin. (3-pin PWR_FAN1) (see p.1 No. 2) English 23

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23
English
FM2A55M-HD+
Chassis Speaker Header
Please connect the chassis
(4-pin SPEAKER 1)
speaker to this header.
(see p.1
No. 6)
1
+5V
DUMMY
DUMMY
SPEAKER
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 and Power Fan
Please connect the fan cable
Connectors
to the fan connector and
(4-pin CHA_FAN1)
match the black wire to the
(see p.1
No. 11)
ground pin.
(3-pin PWR_FAN1)
(see p.1
No. 2)
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL