ASRock G PRO User Manual - Page 13

Note: To optimize compatibility and performance, please connect your hard disk drive to the primary IDE connector (IDE1, blue) and CD-ROM to the secondary IDE connector (IDE2, black). USB header (9-pin USB45) (see p.6/p.7 item 13) ASRock I/OTM already provided 4 default USB ports. If the 4-USB ports on the rear panel are not sufficient, an USB header is available for 2 additional USB ports. Infrared module connector (5-pin IR1) (see p.6/p.7 item 14) This connector supports an optional wireless transmitting and receiving infrared module. Internal audio connectors (4-pin CD1, 4-pin AUX1) (CD1: see p.6/p.7 item 24) (AUX1: see p.6/p.7 item 23) Front panel audio connector (9-pin AUDIO1) (see p.6/p.7 item 20) These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, DVD/ROM, TV tuner card, or MPEG card. This is an interface for front panel audio cable that allows convenient connection and control of audio devices. System panel connector (9-pin PANEL1) (see p.6/p.7 item 12) This connector accommodates several system front panel functions. External speaker connector (4-pin SPEAKER 1) (see p.6/p.7 item 15) Chassis fan connector (3-pin CHA_FAN1) (see p.6/p.7 item 9) This connector allows you to attach to an external speaker. Connect the fan cable to the connector matching the black wire to the ground pin. 13