Intel DG35EC Manuale Utente

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Desktop Board Features 
19 
•  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 52. 
Hardware Management Features 
The hardware management features of Desktop Board DG35EC 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 
•  Fan speed controllers and sensors integrated into the legacy I/O controller 
•  Thermal sensors in the processor, GMCH, and ICH8, 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 
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 23 for 
the location of the chassis intrusion header.