MAXDATA FUSION 6000 I, Системное руководство

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Description
Booting Without Attached Devices
For use in embedded applications, the BIOS has been designed so that after passing the POST,
the operating system loader is invoked even if the following devices are not present:
• Video adapter
• Keyboard
• Mouse
Fast Booting Systems with Intel
®
Rapid BIOS Boot
These factors affect system boot speed:
• Selecting and configuring peripherals properly
• Using an optimized BIOS, such as the Intel
®
Rapid BIOS
Intel
®
Rapid BIOS Boot
Using the following BIOS Setup program settings reduces the POST execution time. In the
Boot Menu:
• Set the hard disk drive as the first boot device. As a result, the POST does not first seek
a diskette drive, which saves about one second from the POST execution time.
• Disable Quiet Boot, which eliminates display of the logo splash screen. This could save
several seconds of painting complex graphic images and changing video modes.
• Enabled Intel
®
Rapid BIOS Boot. This feature bypasses memory count and the search
for a diskette 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 ) will not 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.
This boot time may be so fast that some drives might be not be initialized at all. If this
condition should occur, it is possible to introduce a programmable delay ranging from three
to 30 seconds (using the Hard Disk Pre-Delay feature of the Advanced Menu in the IDE
Confi guration Submenu of the BIOS Setup program).
BIOS Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can be
accessed and who can boot the system. A supervisor password and a user password can
be set for the Setup menu and for booting the system, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all Setup options.
If only the supervisor password is set, pressing <Enter> at the password prompt of
Setup gives the user restricted access to Setup.
• If both the supervisor and user passwords are set, you must enter either the supervisor
password or the user password to access Setup. Setup options are then available
for viewing and changing depending on whether the supervisor or user password was
entered.
• Setting a user password restricts who can boot the system. The password prompt is
displayed before the system is booted. If only the supervisor password is set, the
system boots without asking for a password. If both passwords are set, you can enter either
password to boot the system.