ASRock 890GM Pro3 R2.0 User Manual - Page 28
Chassis and Power Fan Connectors
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Chassis and Power Fan Connectors Please connect the fan cables (4-pin CHA_FAN1) (see p.12 No. 8) GND to the fan connectors and +12V CHA_FAN_SPEED match the black wire to the FAN_SPEED_CONTROL (3-pin PWR_FAN1) (see p.12 No. 29) PWR_FAN_SPEED +12V GND CPU Fan Connector (4-pin CPU_FAN1) (see p.12 No. 2) 4 3 2 1 GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL Please connect the CPU fan cable to this connector and match the black wire to the ground pin. 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. Pin 1-3 Connected 3-Pin Fan Installation ATX Power Connector (24-pin ATXPWR1) (see p.12 No. 7) 12 24 Please connect an ATX power supply to this connector. 1 13 Though this motherboard provides 24-pin ATX power connector, 12 24 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. 20-Pin ATX Power Supply Installation 1 13 ATX 12V Power Connector 5 1 (8-pin ATX12V1) (see p.12 No. 1) 8 4 Please connect an ATX 12V power supply to this connector. Though this motherboard provides 8-pin ATX 12V power connector, it can still work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 5. 5 1 4-Pin ATX 12V Power Supply Installation 8 4 28