ASRock B550M-ITX/ac User Manual - Page 36
Warning: Please make, sure that the power cable, connected is for the CPU, and not the graphics,
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Chassis Water Pump Fan Connectors (4-pin CHA_FAN1/WP) 4 3 21 (see p.7, No. 4) FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND (4-pin CHA_FAN2/WP) 1 2 (see p.7, No. 13) 3 4 GND FAN_VOLTAGE CHA_FAN_SPEED FAN_SPEED_CONTROL This motherboard provides two 4-Pin water cooling chassis fan connector. If you plan to connect a 3-Pin chassis water cooler fan, please connect it to Pin 1-3. CPU Fan Connector (4-pin CPU_FAN1) (see p.7, No. 1) ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 6) ATX 12V Power Connector (8-pin ATX12V1) (see p.7, No. 16) 30 4 3 21 GND FAN_VOLTAGE CPU_FAN_SPEED FAN_SPEED_CONTROL 12 24 1 13 1 4 5 8 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 provides 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. *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. English