ASROCK PRO Series User Manual page 28

CPU Fan Connector
(4-pin CPU_FAN1)
(see p.6, No. 4)
CPU/Water Pump Fan
Connector
(4-pin CPU_FAN2/WP)
(see p.6, No. 5)
ATX Power Connector
(24-pin ATXPWR1)
(see p.6, No. 8)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.6, No. 1)
Serial Port Header
(9-pin COM1)
(see p.6, No. 25)
This motherboard provides
4 3 2 1
a 4-Pin CPU fan (Quiet Fan)
connector. If you plan to
connect a 3-Pin CPU fan,
CPU_FAN_SPEED
FAN_SPEED_CONTROL
please connect it to Pin 1-3.
This motherboard provides
4 3 2 1
a 4-Pin water cooling CPU
fan connector. If you plan to
GND
FAN_VOLTAGE
connect a 3-Pin CPU water
CPU_F AN_SPEED
FAN_SPEED_CONTROL
cooler fan, please connect it
to Pin 1-3.
This motherboard provides
12 24
a 24-pin ATX power con-
nector. To use a 20-pin ATX
power supply, please plug it
along Pin 1 and Pin 13.
1 13
This motherboard
8 5
provides a 8-pin ATX 12V
power connector. To use a
4 1
4-pin ATX power supply,
please plug it along Pin 1 and
Pin 5.
*Warning: Please make
sure that the power cable
connected is for the CPU
and not the graphics card.
Do not plug the PCIe power
cable to this
connector.
This COM1 header supports
RRXD1
DDTR#1
a serial port module.
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
B660 Pro RS
21