32
ASRock ZH77 Pro3 Motherboard
English
Power LED Header
Please connect the chassis
(3-pin PLED1)
power LED to this header to
(see p.2, No. 19)
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).
1
P
L
E
D+
P
L
E
D+
P
L
E
D-
Chassis and Power Fan Connectors
Please connect the fan cables
(4-pin CHA_FAN1)
to the fan connectors and match
(see p.2, No. 7)
the black wire to the ground pin.
CHA_FAN1 and CHA_FAN2
(3-pin CHA_FAN2)
supports Fan Control.
(see p.2, No. 21)
(3-pin PWR_FAN1)
(see p.2, No. 35)
CPU Fan Connectors
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to the connector and
(see p.2, No. 1)
match the black wire to the
ground
pin.
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1 2 3 4
(3-pin CPU_FAN2)
(see p.2, No. 2)
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 Fan Installation
Pin 1-3 Connected
GND
+12V
CPU_FAN_SPEED
ATX Power Connector
Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.2, No. 8)
12
1
24
13
F
A
N_S
PEE
D_CONTROL
GND
+12V
CH
A
_F
A
N_S
PEE
D
P
WR_F
A
N_S
PEE
D
GND
+12V
