Intel DH55HC Product Guide - Page 20
Security Passwords, Hardware Management, Hardware Monitoring and Fan Speed Control, Fan Monitoring - memory compatibility
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Intel Desktop Board DH55HC 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 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 56. Hardware Management The hardware management features of Intel Desktop Board DH55HC 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: • Intel Quiet System Technology, delivering acoustically-optimized thermal management • Thermal sensors in the processor and PCH, as well as near the CPU voltage regulators and system memory • Monitoring of system voltages to detect levels above or below acceptable values • Thermally monitored closed-loop fan control for all three fans that can adjust fan speed as needed Fan Monitoring Fan monitoring can be observed via the BIOS Setup program, Intel® Desktop Utilities, or third-party software. 20