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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
1
(4-pin SPEAKER 1)
+5V DUMMY
(see p.2, No. 17)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
GND
+12V
(see p.2, No. 10)
CHA_FAN_SPEED
FAN_SPEED_CONTROL
(3-pin PWR_FAN1)
PWR_FAN_SPEED
(see p.2, No. 1)
CPU Fan Connectors
FAN_SPEED_CONTROL
CPU_FAN_SPEED
(4-pin CPU_FAN1)
(see p.2, 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
12
(24-pin ATXPWR1)
(see p.2, No. 6)
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your
power supply along with Pin 1 and Pin 13.
ASRock B75M R2.0 Motherboard
Please connect the chassis
SPEAKER
speaker to this header.
DUMMY
Please connect the fan cables
to the fan connectors and match
the black wire to the ground pin.
CHA_FAN1 supports Fan
Control.
+12V
GND
Please connect the CPU fan
cable to the connector and
+12V
GND
match the black wire to the
ground pin.
1 2 3 4
Pin 1-3 Connected
3-Pin Fan Installation
Please connect an ATX power
24
supply to this connector.
1
13
20-Pin ATX Power Supply Installation
12
24
1
13
31
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