Intel MPCBL0001 manual Fast Booting Systems, Bios Security Features, Quick Boot

Intel NetStructure® MPCBL0001 High Performance Single Board Computer

Contents

7.10Fast Booting Systems

7.10.1Quick Boot

Use of the following BIOS Setup program settings reduces the POST execution time.

In the Boot Menu:

•Disable Option—ROM(s) if the user configuration does not use IBA(PXE) boot, or there is no Fibre Channel drive in the system.

•Disable Quiet Boot eliminates display of the logo splash screen. This could save several seconds of painting complex graphic images and changing video modes.

•Enable Quick Boot bypasses memory count and the search for a removable drive.

Note: It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen, if implemented) is be seen. Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen.

Note: This boot time may be so fast that some drives might be not be initialized at all. If this occurs, it is possible to introduce a programmable delay ranging from 3 to 30 seconds using the BIOS Setup program, IDE Configuration Submenu, Advanced Menu, IEDE Detect Time Out feature.

7.11BIOS Security Features

The BIOS includes security features that restrict access to the BIOS Setup program and booting the computer. A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer, with the following restrictions:

•The supervisor password gives unrestricted access to view and change all the Setup options in the BIOS Setup program. This is the supervisor mode.

•The user password gives restricted access to view and change Setup options in the BIOS Setup program. This is the user mode.

•If only the supervisor password is set, pressing the <Enter> key at the password prompt of the BIOS Setup program allows the user restricted access to Setup.

•If both the supervisor and user passwords are set, users can enter either the supervisor password or the user password to access Setup. Users have access to Setup respective to which password is entered.

•Setting the user password restricts who can boot the computer. The password prompt is displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, the user can enter either password to boot the computer.

The table below shows the effects of setting the supervisor password and user password. This table is for reference only and is not displayed on the screen.

114	Technical Product Specification
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