ASRock H91M-S1 PLUS User Manual - Page 24
Chassis and Power Fan, pin A´X12V1
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Chassis Speaker Header (4-pin SPEAKER1) (see p.6, No. 12) DUMMY SPEAKER 1 +5V DUMMY Please connect the chassis speaker to this header. Chassis and Power Fan Connectors (4-pin CHA_FAN1) (see p.6, No. 15) (3-pin PWR_FAN1) (see p.6, No. 2) GND +12V CHA_FAN_SPEED FAN_SPEED_CONTROL Please connect fan cables to the fan connectors and match the black wire to the ground pin. CPU Fan Connectors (4-pin CPU_FAN1) (see p.6, No. 21) GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL his 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. ATX Power Connector (24-pin ATXPWR1) (see p.6, No. 4) 12 24 1 13 his 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. 1) his motherboard provides an 4-pin ATX 12V power connector. Infrared Module Header (5-pin IR1) (see p.6, No. 18) IRTX +5VSB DUMMY 1 GND IRRX his header supports an optional wireless transmitting and receiving infrared module. English 20