Intel Desktop Board D425KT Product Guide

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.

For instructions on resetting the password, see Clearing Passwords on page 36.

Power Management Features

Power management is implemented at several levels, including:

Software support through the Advanced Configuration and Power Interface (ACPI)

Hardware support:

Power connector

Fan header

+5 V standby power indicator LED

LAN Wake capabilities

Instantly Available PC technology

Wake from USB

Wake from PS/2 devices

PME# wakeup support

Wake from serial port

ACPI

ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the Desktop Board requires an operating system that provides full ACPI support.

Hardware Support

Fan Header

The Desktop Board has a 3-pin chassis fan header. See Figure 10 on page 33 for the location of the chassis fan header.

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Intel D425KT manual Power Management Features, Security Passwords, Hardware Support