ASRock P4 Combo User Manual - Page 21

System Panel Header (9-pin PANEL1) (see p.8 No. 13) Chassis Speaker Header (4-pin SPEAKER 1) (see p.8 No. 14) Chassis Fan Connector (3-pin CHA_FAN1) (see p.8 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.8 No. 8) GND +12V CPU_FAN_SPEED N/C You may connect either a 3-pin or a 4-pin CPU fan cable to this connector, then match the black wire to the ground pin. Note: If you use a 3-pin CPU fan cable, insert it to the connector by aligning it with the pins "GND", "+12V", and "CPU_FAN_SPEED". ATX Power Connector (20-pin ATXPWR1) (see p.8 No. 34) Please connect an ATX power supply to this connector. Game Port Connector (15-pin GAME1) (see p.8 No. 21) ATX 12V Connector (4-pin ATX12V1) (see p.8 No. 2) +5V JBB1 JBX MIDI_OUT JBY JBB2 MIDI_IN 1 +5V JAB2 JAY GND GND JAX JAB1 +5V Connect a Game cable to this connector if the Game port bracket is installed. Please note that it is necessary to connect a power supply with ATX 12V plug to this connector so that it can provides CPU Vcore power. Failing to do so will cause the failure to power up. 21