ASRock 939A790GMH User Manual - Page 25

USB 2.0 Headers (9-pin USB8_9) (see p.11 No. 10) (9-pin USB6_7) (see p.11 No. 11) USB_PWR P-9 P+9 GND DUMMY 1 GND P+8 P-8 USB_PWR USB_PWR P-7 P+7 GND DUMMY (9-pin USB4_5) (see p.11 No. 12) 1 GND P+6 P-6 USB_PWR USB_PWR P-5 P+5 GND DUMMY 1 GND P+4 P-4 USB_PWR Print Port Header (25-pin LPT1) (see p.11 No. 25) AFD# ERROR# PINIT# SLIN# GND 1 SPD7 SPD6 ACK# SPD5 BUSY SPD4 PE SPD3 SLCT SPD2 SPD1 SPD0 STB# Infrared Module Header (5-pin IR1) (see p.11 No. 30) IRTX +5V DUMMY 1 GND IRRX Internal Audio Connectors (4-pin CD1) (CD1: see p.11 No. 28) CD1 CD-L GND GND CD-R Front Panel Audio Header (9-pin HD_AUDIO1) (see p.11, No. 29) GND PRESENCE# MIC_RET OUT_RET 1 OUT2_L J_SENSE OUT2_R MIC2_R MIC2_L Besides four default USB 2.0 ports on the I/O panel, there are three USB 2.0 headers on this motherboard. Each USB 2.0 header can support two USB 2.0 ports. This is an interface for print port cable that allows convenient connection of printer devices. This header supports an optional wireless transmitting and receiving infrared module. This connector allows 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 the front panel audio cable that allows convenient connection and control of audio devices. 25