BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the PCI/PCI Express and SATA auto-configuration utilities. The BIOS is stored in the Serial Peripheral Interface (SPI) Flash memory device. The BIOS can be updated by following the instructions in Chapter 3 starting on page 67. Intel Desktop Board DQ67SW Product Guide SATA Auto Configuration If you install a SATA device (such as a hard disk drive) in your computer, 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 SATA device. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program. PCI*/PCI Express Auto Configuration If you install a Conventional PCI or PCI Express add-in card in your computer, 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 Conventional PCI or PCI Express add-in card. BIOS 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 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, go to Clearing Passwords on page 59. Desktop Board Features Hard Disk Drive Passwords NOTE On this board, the Hard Disk Drive Password Security feature is only supported on SATA port 0. Since the passwords are stored on the hard disk drive, if the drive is relocated to another SATA port or computer that does not support the Hard Disk Drive Password Security feature, the drive will not be accessible. The board’s Hard Disk Drive Password Security feature blocks read and write accesses to the hard disk drive until the correct password is entered. Hard disk drive passwords are set in BIOS Setup and are prompted for during the POST. For convenient support of ACPI S3 resume, the system BIOS automatically unlocks drives on resume from S3. The User hard disk drive password, when set, will be required upon each power cycle until the Master Key or User hard disk drive password is entered. The Master Key hard disk drive password, when set, will not lock the hard disk drive. The Master Key hard disk drive password is an unlock override that can be used in the event that the User hard disk drive password has been forgotten. Only the installation of the User hard disk drive password will cause a hard disk drive to be locked upon a system power cycle. Table 4 shows the effects of setting the hard disk drive passwords. Table 4. Master Key and User Hard Disk Drive Password Functions Password Set Password During Boot Neither None Master only None User only User only Master and User Master or User During every POST, if a User hard disk drive password is set, POST execution will pause with the following prompt to force the user to enter the Master Key or User hard disk drive password: Enter Hard Disk Drive Password: Upon successful entry of the Master Key or User hard disk drive password, the system will continue with the normal POST. Intel Desktop Board DQ67SW Product Guide If the hard disk drive password is not correctly entered, the system will go back to the above prompt. The user will have three attempts to correctly enter the hard disk drive password. After the third unsuccessful hard disk drive password attempt, the system will halt with the message: Hard Disk Drive Password Entry Error A manual power cycle will be required to resume system operation. NOTE The Hard Disk Drive Password Security feature is not supported in PCH RAID mode. Secured hard disk drives attached to the system when the system is in PCH RAID mode will not be accessible due to the disabling of BIOS Hard Disk Drive Password support. Desktop Board Features Platform Management and Protection Intel Desktop Board DQ67SW integrates several functions designed to manage the system and lower the total cost of ownership (TCO) of the system. These sys...
