ASRock K8NF4G-SATA2 User Manual - Page 18

System Panel Header (9-pin PANEL1) (see p.9 No. 15) Chassis Speaker Header (4-pin SPEAKER 1) (see p.9 No. 16) Chassis Fan Connector (3-pin CHA_FAN1) (see p.9 No. 14) CPU Fan Connector (3-pin CPU_FAN1) (see p.9 No. 31) ATX Power Connector (20-pin ATXPWR1) (see p.9 No. 29) 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 CPU_FAN_SPEED +12V GND Please connect a chassis fan cable to this connector and match the black wire to the ground pin. Please connect the CPU fan cable to this connector and match the black wire to the ground pin. Please connect an ATX power supply to this connector. ATX 12V Power Connector (4-pin ATX12V1) (see p.9 No. 2) Game Port Header (15-pin GAME1) (see p.9 No. 22) Serial port connector (9-pin COM1) (see p.9 item 30) +5V JBB1 JBX MIDI_OUT JBY JBB2 MIDI_IN 1 +5V JAB2 JAY GND GND JAX JAB1 +5V RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 18 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. Connect a Game cable to this header if the Game port bracket is installed. This COM1 connector supports a serial port module.