ASRock H81M-ITX/WiFi User Manual - Page 29
ATX Power Connector, CPU Fan Connector
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H81M-ITX/WiFi Chassis Fan Connector (4-pin CHA_FAN1) (see p.6, No. 16) 1 GND Please connect fan cable 2 +12V 3 FAN_SPEED to the fan connector and 4 FAN_SPEED_CONTROL match the black wire to the ground pin. CPU Fan Connector (4-pin CPU_FAN1) (see p.6, No. 1) This motherboard pro- 1 GND 2 +12V vides a 4-Pin CPU fan 3 FAN_SPEED 4 FAN_SPEED_CONTROL (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. ATX Power Connector (24-pin ATXPWR1) (see p.6, No. 6) 12 24 1 13 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. ATX 12V Power Connector (4-pin ATX12V1) (see p.6, No. 2) Please connect an ATX 12V power supply to this connector. Chassis Intrusion Header (2-pin CI1) (see p.6, No. 5) GND Signal 1 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. English 25
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