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Table 5. Security menu items (continued)
Menu item
Submenu item Selection Comments
Power-On Password
• Disabled
• Enabled
Refer to “Power-on
password” on page 50
.
Hard Disk1 Password • Disabled
• Enabled
Refer to “Hard disk
passwords” on page
50
.
Flash BIOS Updating by
End-Users
• Disabled
• Enabled
If you select Enabled,
all users can update the
UEFI BIOS. If you select
Disabled, only the person
who knows the supervisor
password can update the
UEFI BIOS.
UEFI BIOS Update Option
Secure RollBack Prevention
• Disabled
• Enabled
If you select Disabled, you
can ash the older version
UEFI BIOS.
Memory Protection Execution Prevention • Disabled
• Enabled
Some computer viruses
and worms cause memory
buffers to overow by
running code where only
data is allowed. If the
Data Execution Prevention
feature can be used with
your operating system, then
by selecting Enabled you
can protect your computer
against attacks by such
viruses and worms. If after
choosing Enabled you nd
that a program does not run
correctly, select Disabled
and reset the setting.
Intel Virtualization
Technology
AMD-V Technology
• Disabled
• Enabled
If you select Enabled, a
Virtual Machine Monitor
(VMM) can utilize the
additional hardware
capabilities provided by
Virtualization Technology.
Virtualization
Intel VT-d Feature • Disabled
• Enabled
Intel VT-d is Intel
Virtualization Technology
for Directed I/O. When
enabled, a VMM can utilize
the platform infrastructure
for I/O virtualization.
Note: This sub-menu is not
supported in models with
an AMD CPU.
Chapter 7. Advanced conguration 109