Lenovo ThinkPad T540p (English) User Guide - Page 134

Menu item, Selection, Comments, Memory Protection, Enabled, Disabled, Virtualization, I/O Port Access

Page 134 highlights

Table 5. Security menu items (continued) Menu item Submenu item Memory Protection Execution Prevention Selection • Disabled • Enabled Virtualization I/O Port Access Intel Virtualization Technology • Disabled • Enabled Intel VT-d Feature • Disabled • Enabled Ethernet LAN Wireless LAN Wireless WAN Bluetooth USB Port Ultrabay (HDD/Optical) Memory Card Slot Smart Card Slot • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled 118 User Guide Comments Some computer viruses and worms cause memory buffers to overflow 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 find that a program does not run correctly, select Disabled and reset the setting. If you select Enabled, a Virtual Machine Monitor (VMM) can utilize the additional hardware capabilities provided by Virtualization Technology. Intel VT-d is Intel Virtualization Technology for Directed I/O. When enabled, a VMM can utilize the platform infrastructure for I/O virtualization. If you select Enabled, you can use the Ethernet LAN device. If you select Enabled, you can use wireless LAN devices. If you select Enabled, you can use wireless WAN devices. If you select Enabled, you can use Bluetooth devices. If you select Enabled, you can use USB connectors. If you select Enabled, you can use the Ultrabay device. If you select Enabled, you can use the memory card slots. If you select Enabled, you can use the smart card slots.

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Table 5. Security menu items (continued)
Menu item
Submenu item
Selection
Comments
Memory Protection
Execution Prevention
• Disabled
Enabled
Some computer viruses
and worms cause memory
buffers to overflow by
running code where only
data is allowed. If the
Data Execution Prevention
feature can be used with
youroperatingsystem,then
by selecting
Enabled
you
can protect your computer
against attacks by such
viruses and worms. If after
choosing
Enabled
you find
thataprogramdoesnotrun
correctly, select
Disabled
and reset the setting.
Intel Virtualization
Technology
Disabled
• Enabled
If you select
Enabled
,a
Virtual Machine Monitor
(VMM) can utilize the
additional hardware
capabilities provided by
VirtualizationTechnology.
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.
Ethernet LAN
• Disabled
Enabled
If you select
Enabled
, you
can use the Ethernet LAN
device.
Wireless LAN
• Disabled
Enabled
If you select
Enabled
,
you can use wireless LAN
devices.
Wireless WAN
• Disabled
Enabled
If you select
Enabled
, you
can use wireless WAN
devices.
Bluetooth
• Disabled
Enabled
If you select
Enabled
, you
can use Bluetooth devices.
USB Port
• Disabled
Enabled
If you select
Enabled
, you
can use USB connectors.
Ultrabay (HDD/Optical)
• Disabled
Enabled
If you select
Enabled
,
you can use the Ultrabay
device.
Memory Card Slot
• Disabled
Enabled
If you select
Enabled
, you
can use the memory card
slots.
Smart Card Slot
• Disabled
Enabled
If you select
Enabled
, you
can use the smart card
slots.
I/O Port Access
118
User Guide