ASROCK Z77 Pro4 Bedienungsanleitung Seite 32

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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 assign-ments are
matched correctly.
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2, No. 19)
Power LED Header
(3-pin PLED1)
(see p.2, No. 21)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.2, No. 38)
(3-pin CHA_FAN2)
(see p.2, No. 22)
(3-pin PWR_FAN1)
(see p.2, No. 37)
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.2, No. 1)
32
FAN_SPEED_CONTROL
CHA_FAN_SPEED
+12V
GND
CHA_FAN_SPEED
+12V
GND
PWR_FAN_SPEED
+12V
GND
ASRock Z77 Pro4 Motherboard
Please connect the chassis
speaker to this header.
Please connect the chassis
power LED to this header to
indicate system power status.
The LED is on when the system
is operating. The LED keeps
blinking in S1/S3 state. The
LED is off in S4 state or S5
state (power off).
Please connect the fan cables
to the fan connectors and match
the black wire to the ground pin.
CHA_FAN1 and CHA_FAN2
supports Fan Control.
Please connect the CPU fan
cable to the connector and
match the black wire to the
ground pin.