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Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2 No. 21)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.2 No. 9)
(3-pin CHA_FAN2)
(see p.12 No. 11)
(3-pin CHA_FAN3)
(see p.2 No. 12)
(3-pin PWR_FAN1)
(see p.2 No. 4)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.2 No. 6)
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.2 No. 5)
ATX Power Connector
(24-pin ATXPWR1)
(see p.2 No. 10)
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.
2 4
2 4
2 4
2 4
2 4
ASRock
Please connect the chassis
speaker to this header.
Please connect the fan cables
to the fan connectors and
match the black wire to the
ground pin. CHA_FAN1/2/3 fan
speed can be controlled through
UEFI or AXTU.
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
870 Extreme3
Motherboard
12
24
1
13
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