MSI P43 - Manual (Page 51)

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BIOS Setup
USB Controller
This setting allows you to enable/disable the onboard USB controller.
USB Device Legacy Support
Select [Enabled] if you need to use a USB-interfaced device in the operating system.
Onboard LAN Controller
This item is used to enable/disable the onboard 1st LAN controller .
LAN Option ROM
This item is used to decide whether to invoke the Boot ROM of the LAN controller.
Onboard IEEE1394 Controller
This item allows you to enable/disable the onboard IEEE1394 controller.
Extra IDE Controller
This item allows you to enable/disable the Extra IDE controller.
HD Audio Controller
This setting is used to enable/disable the onboard audio controller.
On-Chip ATA Devices
Press to enter the sub-menu and the following screen appears:
Integrated Peripherals
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