Hardware Management; Hardware Monitoring And Fan Speed Control; Intel ® Precision Cooling Technology; Chassis Intrusion - Intel DX48BT2 - Desktop Board Extreme Series Motherboard Product Manual

• 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, go to Clearing Passwords on page 57.

Hardware Management

The hardware management features of Desktop Board DX48BT2 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 Precision Cooling Technology fan speed control, delivering acoustically-
optimized thermal management
• A thermal sensor in the processor
• Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
fan speed or switch the fans off as needed
®
Intel Precision Cooling Technology
Intel Precision Cooling Technology automatically adjust processor fan speed based on
the processor temperature and adjusts chassis fan speeds based on the internal
system temperature.

Chassis Intrusion

The 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 27 for
the location of the chassis intrusion header.
Desktop Board Features
19