Dell Precision 490 Desktop User Manual page 17

This setting specifies which video controller is primary, PCI or
Primary
PEG. PEG is the appropriate setting for a PCI Express graphics
Video
card or cards.
(PEG
default)
Performance
Determines whether the physical processor appears as
HyperThreading
one or two logical processors. The performance of some
applications improves with additional logical processors
(On default)
installed. On enables hyperthreading.
Multiple CPU
Core
Determines whether the processor will have one or two
cores enabled. On enables the second core.
(On default)
Enables Intel® SpeedStep® for all supported processors
in the computer. This setting changes the processor power
consumption and frequency.
SpeedStep
(Off default)
NOTE: This option may not be available on your computer.
Virtualization
Specifies whether a virtual machine monitor (VMM) can
utilize the additional hardware capabilities provided by
Intel Virtualization technology.
(Off default)
Limit CPUID
Limits the max value the processor standard CPUID
Value
function will support. Some operating systems won't
complete installation when the max CPUID function
supported is greater than 3.
(Off default)
Security
Unlock
When an administrator password is being used, allows the
Setup
user access to modify system setup settings. Enter the
administrator password at the prompt to unlock system setup.
If the correct password is not entered here, the user can view
(Locked
but not modify system setup fields.
default)
Admin
Password
Displays the current status of your system setup program's
password security feature and allows you to verify and assign
a new admin password.
(Not Set
default)
System
Password
Displays the current status of the system's password security
feature and allows a new system password to be assigned and
verified.
(Not Set
default)
Password
Determines the interaction between the System password and
Changes
the Admin password. Locked prevents a user without a valid
Admin password from being able to modify the System
password. Unlocked allows a user with a valid System
(Unlocked
password to modify the system password.
default)
Chassis
Intrusion
When enabled, this option alerts the user, during the next
computer start-up, that the computer cover has been opened.
The settings are On, On-Silent (default setting), and Off.
(On-Silent
default)
Intrusion
Acknowledges and clears a chassis intrusion alert.
Alert
TPM
Security
Enables or disables the Trusted Platform Module security
device.
(Off
default)
Execute
Disable
Enables or disables Execute Disable memory protection
technology.
(On
default)
Power Management
Determines how the system responds when AC power is re-
AC
applied after a power loss. Off commands the system to stay off
Recovery
when the power is re-applied. You must press the front-panel
power button before the system turns on. On commands the
system to turn on when the power is re-applied. Last commands
(Off
the system to return to the last power state the system was in
default)
just before it was turned off.