ASROCK B550 Phantom Gaming 4/ac Manual page 34

CPU Fan / Waterpump
Fan Connector
(4-pin CPU_FAN2/WP)
(see p.1, No. 1)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 9)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 2)
ATX 12V Power
Connector
(4-pin ATX12V2)
(see p.1, No. 3)
Serial Port Header
(9-pin COM1)
(see p.1, No. 27)
FAN_VOLTAGE
CPU_FAN_SPEED
GND
FAN_SPEED_CONTROL
1 2 3 4
12 24
13
1
8 5
4
1
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
B550 Phantom Gaming 4/ac
This motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
This motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
This motherboard
provides a 8-pin ATX 12V
power connector. To use a
4-pin ATX power supply,
please plug it along Pin 1
and Pin 5.
Please connect an ATX
12V power supply to this
connector.
*Connecting an ATX
12V 4-pin cable here is
optional.
*The power supply plug
fits into this connector in
only one orientation.
This COM1 header
supports a serial port
module.
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