Chassis/Power Fan Connectors - ASROCK H55M-GE User Manual

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C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for HD audio panel only. You don't
need to connect them for AC'97 audio panel.
System Panel Header
(9-pin PANEL1)
(see p.11 No. 21)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.11 No. 18)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.11 No. 10)
(3-pin PWR_FAN1)
(see p.11 No. 5)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.11 No. 4)
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.
ATX Power Connector
(24-pin ATXPWR1)
(see p.11, No. 9)
This header accommodates
PLED+
PLED-
several system front panel
PWRBTN#
GND
functions.
1
DUMMY
RESET#
GND
HDLED-
HDLED+
Please connect the chassis
1
speaker to this header.
SPEAKER
DUMMY
DUMMY
+5V
Please connect the fan cables
to the fan connectors and
GND
+12V
match the black wire to the
CHA_FAN_SPEED
FAN_SPEED_CONTROL
ground pin.
PWR_FAN_SPEED
+12V
GND
Please connect a CPU fan cable
to this connector and match
the black wire to the ground pin.
1 2 3 4
Pin 1-3 Connected
3-Pin Fan Installation
12
24
Please connect an ATX power
supply to this connector.
1
13
2 3
2 3
2 3
2 3
2 3

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