User`s manual

56 BIOS Settings and Driver Installation
Matrix MXC-2000 Series
User’s Manual
4.1.3.2 South Bridge Configuration
USB Function
Specify the number of USB ports enabled in Matrix controller.
The default value is 8 USB ports.
USB 2.0 Controller
Specify whether to enable or disable built-in USB 2.0 controller
in south bridge chip.
Audio Controller
Enable/Disable the Azalia HD audio or AC97 audio.
Restore on Power Loss
Determine the system status when external power is restored
after a power loss.
Option Description
Power Off
The Matrix controller remains off when external DC
power is supplied.
Power On
The Matrix controller is turn on when external DC
power is supplied. You can specify this option to mimic
the AT power behavior, and use an external switch to
control the on/off of Matrix controller.
Last State
If encountering a power loss, the Matrix controller
resumes to the previous on/off state when external
power is normally supplied.
Table 4-7: Restore on Power Loss