MX680RD User’s Manual
1.9.6 Audio Amplifier Connector: JAMP1
This header provides amplified audio signals to external speakers (2-channels). The BIOS option
“Amplifier GAIN (dB)” supports its volume control.
1.9.7 Front USB2.0 Header: USB1112
This header provides two USB2.0 connections (An USB2.0 cable is required).
Be sure the pins of USB+5V and GND signals on USB2.0 cable are connected to the
corresponding USB2.0 headers correctly. Otherwise, it may cause damage to the USB
port and/or the connected USB device.