Usb Legacy Support; Bios Security Features - Intel MS440GX Product Manual

USB Legacy Support

USB legacy support enables USB keyboards and mice to be used even when no operating system
USB drivers are in place. By default, USB legacy support is disabled and is only intended to be
used in accessing BIOS Setup and installing an operating system that supports USB.
This sequence describes how USB legacy support operates in the default (disabled) mode.
1. When you power up the computer, USB legacy support is disabled.
2. POST begins.
3. USB legacy support is temporarily enabled by the BIOS. This allows you to use a USB
keyboard to enter the Setup program or the maintenance mode.
4. POST completes and disables USB legacy support (unless it was set to Enabled while in
Setup).
5. The operating system loads. While the operating system is loading, USB keyboards and mice
are not recognized. After the operating system loads the USB drivers, the USB devices are
recognized.
To install an operating system that supports USB, enable USB Legacy support in BIOS Setup and
follow the operating system's installation instructions. Once the operating system is installed and
the USB drivers configured, USB legacy support is no longer used. USB Legacy Support can be
left enabled in BIOS Setup if needed.
NOTES
If USB legacy support is enabled, then do not mix USB and PS/2 keyboards and mice. For
example, do not use a PS/2 keyboard with a USB mouse, or a USB keyboard and a PS/2 mouse.
Do not use USB devices with an operating system that does not support USB. USB legacy is not
intended to support the use of USB devices in a non USB operating system.
USB legacy support is for keyboards and mice only. Hubs and other USB devices are not
supported.

BIOS Security Features

The BIOS includes security features that restrict access to the BIOS Setup program and who can
boot the computer. An administrator password and a user password can be set for the Setup
program and for booting the computer using options on the Security Menu (see Figure 13) with the
following restrictions:
Password Modes
If in Administrator Mode, then the administrator password gives unrestricted access to view
and change all Setup options in the Setup Program.
If in User Mode, then the user password gives restricted access to view and change Setup
options in the Setup Program.
Using the BIOS Features
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