ASRock ConRoe945G-DVI User Manual - Page 23

F. Enter Windows system. Click the icon on the lower right hand taskbar to enter Realtek HD Audio Manager. Click "Audio I/O", select "Connector Settings" , choose "Disable front panel jack detection", and save the change by clicking "OK". System Panel Header (9-pin PANEL1) (see p.10 No. 13) Chassis Speaker Header (4-pin SPEAKER 1) (see p.10 No. 12) 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. Chassis Fan Connector (3-pin CHA_FAN1) (see p.10 No. 17) 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. 3) +12V CPU_FAN_SPEED GND FAN_SPEED_CONTROL Please connect a CPU fan cable to this connector and match the black wire to the ground pin. ATX Power Connector (20-pin ATXPWR1) (see p.10 No. 27) Please connect an ATX power supply to this connector. ATX 12V Connector (4-pin ATX12V1) (see p.10 No. 2) Serial port Header (9-pin COM1) (see p.10 No. 29) RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 Please note that it is necessary to connect a power supply with ATX 12V plug to this connector so that it can provides sufficient power. Failing to do so will cause the failure to power up. This COM1 header supports a serial port module. 23