ASRock AM2NF3-VSTA User Manual - Page 20

System Panel Header (9-pin PANEL1) (see p.10 No. 14) Chassis Speaker Header (4-pin SPEAKER 1) (see p.10 No. 13) Chassis Fan Connector (3-pin CHA_FAN1) (see p.10 No. 15) PLED+ PLEDPWRBTN# GND 1 DUMMY RESET# GND HDLEDHDLED+ 1 SPEAKER DUMMY DUMMY +5V GND +12V CHA_FAN_SPEED This header accommodates several system front panel functions. Please connect the chassis speaker to this header. 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. 26) +12V CPU_FAN_SPEED GND FAN_SPEED_CONTROL 1 2 3 4 Please connect the CPU fan cable to this connector and match the black wire to the ground pin. Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan still can work successfully even without the fan speed control function. If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this motherboard, please connect it to Pin 1-3. Pin 1-3 Connected 3-Pin Fan Installation ATX Power Connector (20-pin ATXPWR1) (see p.10 No. 27) Please connect an ATX power supply to this connector. ATX 12V Power Connector (4-pin ATX12V1) (see p.10 No. 2) Please note that it is necessary to connect a power supply with ATX 12V plug to this connector. Failing to do so will cause power up failure. 20