ASRock B550M Pro4 User Manual - Page 35
Chassis Water Pump Fan
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B550M Pro4 (19-pin F_USB3_3_4) (see p.7, No. 18) IntA_P_D+ IntA_P_DGND IntA_P_SSTX+ IntA_P_SSTXGND IntA_P_SSRX+ IntA_P_SSRXVbus 1 Vbus IntA_P_SSRXIntA_P_SSRX+ GND IntA_P_SSTXIntA_P_SSTX+ GND IntA_P_DIntA_P_D+ ID Front Panel Audio Header (9-pin HD_AUDIO1) (see p.7, No. 30) GND PRESENCE# MIC_RET OUT_RET 1 OUT2_L J_SENSE OUT2_R MIC2_R MIC2_L This header is for connecting audio devices to the front audio panel. 1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instructions in our manual and chassis manual to install your system. 2. If you use an AC'97 audio panel, please install it to the front panel audio header by the steps below: A. Connect Mic_IN (MIC) to MIC2_L. B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L. C. Connect Ground (GND) to Ground (GND). D. MIC_RET and OUT_RET are for the HD audio panel only. You don't need to connect them for the AC'97 audio panel. E. To activate the front mic, go to the "FrontMic" Tab in the Realtek Control panel and adjust "Recording Volume". English Chassis Water Pump Fan Connectors (4-pin CHA_FAN1/WP) (see p.7, No. 31) FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND 4 This motherboard 3 2 provides four 4-Pin water 1 cooling chassis fan connectors. If you plan to connect a 3-Pin chassis water cooler fan, please connect it to Pin 1-3. 29