Gigabyte GA-B75M-D3H Manual - Page 34

Limit CPUID Maximum, Execute Disable Bit, Intel Virtualization Technology, Administrator Password - vt d

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&& Limit CPUID Maximum (Note) Allows you to determine whether to limit CPUID maximum value. Set this item to Disabled for Windows XP operating system; set this item to Enabled for legacy operating system such as Windows NT4.0. (Default: Disabled) && Execute Disable Bit (Note) Enables or disables Intel Execute Disable Bit function. This function may enhance protection for the computer, reducing exposure to viruses and malicious buffer overflow attacks when working with its supporting software and system. (Default: Enabled) && Intel Virtualization Technology (Note) Enables or disables Intel Virtualization Technology. Virtualization enhanced by Intel Virtualization Technology will allow a platform to run multiple operating systems and applications in independent partitions. With virtualization, one computer system can function as multiple virtual systems. (Default: Disabled) && VT-d (Note) Enables or disables Intel Virtualization Technology for Directed I/O. (Default: Enabled) && Administrator Password Allows you to configure an administrator password. Press on this item, type the password, and then press . You will be requested to confirm the password. Type the password again and press . You must enter the administrator password (or user password) at system startup and when entering BIOS Setup. Differing from the user password, the administrator password allows you to make changes to all BIOS settings. && User Password Allows you to configure a user password. Press on this item, type the password, and then press . You will be requested to confirm the password. Type the password again and press . You must enter the administrator password (or user password) at system startup and when entering BIOS Setup. However, the user password only allows you to make changes to certain BIOS settings but not all. To cancel the password, press on the password item and when requested for the password, enter the correct one first. When prompted for a new password, press without entering any password. Press again when prompted to confirm. (Note) This item is present only when you install a CPU that supports this feature. For more information about Intel CPUs' unique features, please visit Intel's website. - 34 -

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Limit CPUID Maximum
&
(Note)
Allows you to determine whether to limit CPUID maximum value. Set this item to
Disabled
for Windows XP
operating system; set this item to
Enabled
for legacy operating system such as Windows NT4.0. (Default:
Disabled)
Execute Disable Bit
&
(Note)
Enables or disables Intel Execute Disable Bit function. This function may enhance protection for the computer,
reducing exposure to viruses and malicious buffer overflow attacks when working with its supporting software
and system. (Default: Enabled)
Intel Virtualization Technology
&
(Note)
Enables or disables Intel Virtualization Technology. Virtualization enhanced by Intel Virtualization Technology
will allow a platform to run multiple operating systems and applications in independent partitions. With
virtualization, one computer system can function as multiple virtual systems. (Default: Disabled)
VT-d
&
(Note)
Enables or disables Intel Virtualization Technology for Directed I/O. (Default: Enabled)
Administrator Password
&
Allows you to configure an administrator password. Press <Enter> on this item, type the password, and
then press <Enter>. You will be requested to confirm the password. Type the password again and press
<Enter>. You must enter the administrator password (or user password) at system startup and when entering
BIOS Setup. Differing from the user password, the administrator password allows you to make changes to
all BIOS settings.
User Password
&
Allows you to configure a user password. Press <Enter> on this item, type the password, and then press
<Enter>. You will be requested to confirm the password. Type the password again and press <Enter>. You
must enter the administrator password (or user password) at system startup and when entering BIOS Setup.
However, the user password only allows you to make changes to certain BIOS settings but not all.
To cancel the password, press <Enter> on the password item and when requested for the password, enter the
correct one first. When prompted for a new password, press <Enter> without entering any password. Press
<Enter> again when prompted to confirm.
(Note)
This item is present only when you install a CPU that supports this feature. For more information about
Intel CPUs' unique features, please visit Intel's website.