ASRock 775i65G User Manual - Page 20

1. +5VA is used for audio power only, please don't connect it to any other power, such as USB. 2. HD (Azalia) audio front panel and AC'97 audio front panel have different pin-definition. Incorrect connection of the audio front panel and the front panel audio header may cause permanent damage to this motherboard. System Panel Header (9-pin PANEL1) (see p.9 No. 14) PLED+ PLEDPWRBTN# GND 1 DUMMY RESET# GND HDLEDHDLED+ This header accommodates several system front panel functions. Chassis Speaker Header (4-pin SPEAKER 1) (see p.9 No. 15) 1 SPEAKER DUMMY DUMMY +5V Please connect the chassis speaker to this header. Chassis Fan Connector (3-pin CHA_FAN1) (see p.9 No. 13) 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.9 No. 6) GND +12V CPU_FAN_SPEED 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.9 No. 3) Please connect an ATX power supply to this connector. ATX 12V Connector (4-pin ATX12V1) (see p.9, No. 2) COM Port Header (9-pin COM1) (see p.9 No. 20) 20 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 COM port header is used to support a COM port module.