Intel D2500CC Product Guide for Intel Desktop Board D2500CC - Page 19

BIOS, PCI/PCI Express Auto Configuration, Security Passwords, Hardware Management Features - controlling fan speed in bios

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Page 19 highlights

Desktop Board Features BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and SATA auto-configuration utilities, and the video BIOS. PCI/PCI Express Auto Configuration If you install a PCI Card or a PCI Express Mini 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 the add-in card. 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, see Clearing Passwords on page 41. Hardware Management Features The board's hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. The board's hardware management features include thermal and voltage monitoring. The hardware monitoring and fan control subsystem is based on the Nuvoton W83627DH-P legacy I/O controller, which supports the following: • Processor and system ambient temperature monitoring • System fan speed monitoring • Power monitoring of +12 V, +5 V, +5 Vstdby, +3.3 V, and +VCCP • SMBus interface 19

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Desktop Board Features
19
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI
and SATA auto-configuration utilities, and the video BIOS.
PCI/PCI Express Auto Configuration
If you install a PCI Card or a PCI Express Mini 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 the add-in card.
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.
For instructions on resetting the password, see Clearing Passwords on page 41.
Hardware Management Features
The board’s hardware management features enable the board to be compatible with
the Wired for Management (WfM) specification.
The board’s hardware management
features include thermal and voltage monitoring.
The hardware monitoring and fan control subsystem is based on the Nuvoton
W83627DH-P legacy I/O controller, which supports the following:
•
Processor and system ambient temperature monitoring
•
System fan speed monitoring
•
Power monitoring of +12 V, +5 V, +5 Vstdby, +3.3 V, and +VCCP
•
SMBus interface