ASRock 939S56-M User Manual - Page 18

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 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 (3-pin CPU_FAN1) (see p.8 No. 30) CPU_FAN_SPEED +12V GND Please connect the CPU fan cable to this connector and match the black wire to the ground pin. ATX Power Connector (20-pin ATXPWR1) (see p.8 No. 29) Please connect an ATX power supply to this connector. ATX 12V Power Connector (4-pin ATX12V1) (see p.8 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. Game Port Header (15-pin GAME1) (see p.8 No. 22) +5V JBB1 JBX MIDI_OUT JBY JBB2 MIDI_IN 1 +5V JAB2 JAY GND GND JAX JAB1 +5V Connect a Game cable to this header if the Game port bracket is installed. 18