ASROCK B450M/ac R2.0 User Manual page 39

Chassis/Water Pump Fan
Connectors
(4-pin CHA_FAN2/WP)
(see p.7, No. 23)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.7, No. 2)
ATX Power Connector
(24-pin ATXPWR1)
(see p.7, No. 6)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.7, No. 1)
Chassis Intrusion Header
(2-pin CI1)
(see p.7, No. 15)
4
FAN_SPEED_CONTROL
3
CHA_FAN_SPEED
2
FAN_VOLTAGE
1
GND
FAN_SPEED_CONTROL
CPU_FAN_SPEED
FAN_VOLTAGE
GND
1 2 3 4
12 24
1 13
8 5
4
1
1
GND
Signal
This motherboard
provides one 4-Pin water
cooling chassis fan
connectors. If you plan to
connect a 3-Pin chassis
water cooler fan, please
connect it to Pin 1-3.
This motherboard
provides 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.
This motherboard
supports CASE OPEN
detection feature that
detects if the chassis cove
has been removed. This
feature requires a chassis
with chassis intrusion
detection design.
B450M/ac R2.0
33