7.Optical drive audio connector (4-pin CD)

These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.

P5E3 WS PRO

Channel Audio Left

Ground

Ground

Channel Audio Right

CD

P5E3 WS Professional Internal audio connectorTo activate ASUS Music Alarm:

• Connect the analog audio cable from the optical drive to the 4-pin CD-IN connector labeled CD on the motherboard.

•Connect speaker or a headphone to the Line-Out (lime-colored) port on the front or rear panel for audio output. You may also connect speakers or a headphone to the output jack on the optical drive.

8.Serial port connector (10-1 pin COM1)

This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.

COM1

PIN 1

P5E3 WS PRO

P5E3 WS Professional COM port connector

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Chapter 2: Hardware information