Serial Ata And Ide Auto Configuration; Pci And Pci Express Auto Configuration; Security Passwords; Chassis Intrusion - Intel D925XHY Product Manual

Intel Desktop Board D925XHY Product Guide

Serial ATA and IDE Auto Configuration

If you install a Serial ATA or IDE device (such as a hard drive) in your desktop board, the auto-
configuration utility in the BIOS automatically detects and configures the device for your computer.
You do not need to run the BIOS Setup program after installing a Serial ATA or IDE device. You
can override the auto-configuration options by specifying manual configuration in the BIOS Setup
program.
When booting from a Serial ATA device, Serial ATA connector 0 is the first boot device and Serial
ATA connector 3 is the last boot device.

PCI and PCI Express Auto Configuration

If you install a PCI/PCI Express add-in card in your desktop board, the PCI/PCI Express auto-
configuration utility in the BIOS automatically detects and configures the resources (IRQs, DMA
channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after
you install a PCI/PCI Express add-in card.

Security Passwords

The BIOS includes security features that restrict whether the BIOS Setup program can be accessed
and who can boot the computer. A supervisor password and a user password can be set for the
BIOS Setup and for booting the computer, 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 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, you can enter either password
to boot the computer.

Chassis Intrusion

The desktop board supports a chassis security feature that detects if the chassis cover has been
removed. The security feature uses a mechanical switch on the chassis that can be connected to the
chassis intrusion header on the desktop board. See Figure 20 on page 41 for the location of the
chassis intrusion header.
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