ASRock H87 Pro4 User Manual - Page 30
Serial Port Header, ATX Power Connector - cpu support
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(3-pin PWR_FAN1) (see p.10, No. 1) CPU Fan Connectors (4-pin CPU_FAN1) (see p.10, No. 25) (3-pin CPU_FAN2) (see p.10, No. 26) GND +12V FAN_SPEED GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL 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. ATX Power Connector (24-pin ATXPWR1) (see p.10, No. 5) ATX 12V Power Connector (8-pin ATX12V1) (see p.10, No. 2) Infrared Module Header (5-pin IR1) (see p.10, No. 18) Serial Port Header (9-pin COM1) (see p.10, No. 21) 12 24 1 13 8 5 4 1 IRTX +5VSB DUMMY 1 GND IRRX RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 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 an 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. This header supports an optional wireless transmitting and receiving infrared module. This COM1 header supports a serial port module. 26 English
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