ASRock J4125-ITX User Manual - Page 21

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". Chassis Fan Connector (3-pin CHA_FAN1) (see p.5, No. 7) GND FAN_VOLTAGE CHA_FAN_SPEED Please connect fan cable to the fan connector and match the black wire to the ground pin. CPU Fan Connector (3-pin CPU_FAN1) (see p.5, No. 1) GND FAN_VOLTAGE CPU_FAN_SPEED Please connect the CPU fan cable to the connector and match the black wire to the ground pin. ATX Power Connector (24-pin ATXPWR1) (see p.5, No. 4) 12 24 1 13 Serial Port Header (9-pin COM1) (see p.5, No. 8) 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 COM1 header supports a serial port module. 16 English