ASRock 945GCM-S User Manual - Page 21

D. MIC_RET and OUT_RET are for HD audio panel only. You don't need to connect them for AC'97 audio panel. E. Enter BIOS Setup Utility. Enter Advanced Settings, and then select Chipset Configuration. Set the Front Panel Control option from [Auto] to [Enabled]. F. Enter Windows system. Click the icon on the lower right hand taskbar to enter Realtek HD Audio Manager. For Windows® 2000 / XP / XP 64-bit OS: Click "Audio I/O", select "Connector Settings" , choose "Disable front panel jack detection", and save the change by clicking "OK". For Windows® VistaTM / VistaTM 64-bit OS: Click the right-top "Folder" icon , choose "Disable front panel jack detection", and save the change by clicking "OK". G. To activate the front mic. For Windows® 2000 / XP / XP 64-bit OS: Please select "Front Mic" as default record device. If you want to hear your voice through front mic, please deselect "Mute" icon in "Front Mic" of "Playback" portion. For Windows® VistaTM / VistaTM 64-bit OS: Go to the "Front Mic" Tab in the Realtek Control panel. Click "Set Default Device" to make the Front Mic as the default record device. System Panel Header (9-pin PANEL1) (see p.10 No. 17) Chassis Speaker Header (4-pin SPEAKER 1) (see p.10 No. 14) Chassis Fan Connector (3-pin CHA_FAN1) (see p.10 No. 19) PLED+ PLEDPWRBTN# GND 1 DUMMY RESET# GND HDLEDHDLED+ 1 SPEAKER DUMMY DUMMY +5V This header accommodates several system front panel functions. Please connect the chassis speaker to this header. GND +12V CHA_FAN_SPEED Please connect a chassis fan cable to this connector and match the black wire to the ground pin. CPU Fan Connector (4-pin CPU_FAN1) (see p.10 No. 4) Please connect a CPU fan cable 1 GND 2 +12V to this connector and match 3 CPU_FAN_SPEED 4 FAN_SPEED_CONTROL the black wire to the ground pin. 21