ASRock G31M-VS2 User Manual - Page 21

E. Enter BIOS Setup Utility. Enter Advanced Settings, and then select Chipset Configuration. Set the Front Panel Control option from [Auto] to [Enabled]. System Panel Header (9-pin PANEL1) (see p.10 No. 9) Chassis Speaker Header (4-pin SPEAKER 1) (see p.10 No. 14) Chassis Fan Connector (3-pin CHA_FAN1) (see p.10 No. 16) 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. 3) +12V CPU_FAN_SPEED GND FAN_SPEED_CONTROL 1 2 3 4 Please connect a 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 24 (24-pin ATXPWR1) (see p.10 No. 4) 12 Please connect an ATX power 13 supply to this connector. 1 Though this motherboard provides 24-pin ATX power connector, it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13. 24 13 20-Pin ATX Power Supply Installation 12 1 21