ASROCK 890GX EXTREME4 User Manual page 35

Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.12 No. 8)
(3-pin CHA_FAN2)
(see p.12 No. 10)
(3-pin CHA_FAN3)
(see p.12 No. 11)
(3-pin PWR_FAN1)
(see p.12 No. 43)
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.12 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.
(3-pin CPU_FAN2)
(see p.12 No. 5)
ATX Power Connector
(24-pin ATXPWR1)
(see p.12 No. 9)
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.
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. CHA_FAN1/2/3 fan
GND speed can be controlled through
+12V
CHA_FAN_SPEED
BIOS or OC Tuner utility.
GND
+12V
CHA_FAN_SPEED
Please connect the 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
Please connect an ATX power
12 24
supply to this connector.
1 13
20-Pin ATX Power Supply Installation
3 5 3 5 3 5 3 5 3 5
12 24
1 13