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Intel Desktop Board DG33TL Product Guide
20
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.
Related Links:
For instructions on resetting the password, see
Clearing Passwords on page 56.
Hardware Management Features
The hardware management features of Desktop Board DG33TL enable the board to be
compatible with the Wired for Management (WfM) specification. The board has several
hardware management features including the following:
• Fan speed monitoring and control
• Thermal and voltage monitoring
• Chassis intrusion detection
Hardware Monitoring and Fan Speed Control
The features of the hardware monitoring and fan speed control include:
• Monitoring of power supply voltages to detect levels above and below acceptable
values
• Intel Quiet System Technology fan speed control, delivering acoustically-optimized
thermal management
NOTE
Memory must be installed in the Channel A, DIMM 0 socket to enable Intel
Quiet System Technology.
• Fan speed controllers and sensors integrated into the ICH9R
• Thermal sensors in the processor, MCH, and ICH9R, plus an onboard remote sensor
• Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
fan speed or switch the fans off as needed