Dell Precision 490 - Manual (Page 17)

Primary
Video
(PEG
default)
This setting specifies which video controller is primary, PCI or
PEG. PEG is the appropriate setting for a PCI Express graphics
card or cards.
Performance
HyperThreading
(On default)
Determines whether the physical processor appears as
one or two logical processors. The performance of some
applications improves with additional logical processors
installed. On enables hyperthreading.
Multiple CPU
Core
(On default)
Determines whether the processor will have one or two
cores enabled. On enables the second core.
SpeedStep
(Off default)
Enables Intel® SpeedStep® for all supported processors
in the computer. This setting changes the processor power
consumption and frequency.
NOTE: This option may not be available on your computer.
Virtualization
(Off default)
Specifies whether a virtual machine monitor (VMM) can
utilize the additional hardware capabilities provided by
Intel Virtualization technology.
Limit CPUID
Value
(Off default)
Limits the max value the processor standard CPUID
function will support. Some operating systems won't
complete installation when the max CPUID function
supported is greater than 3.
Security
Unlock
Setup
(Locked
default)
When an administrator password is being used, allows the
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
but not modify system setup fields.
Admin
Password
(Not Set
default)
Displays the current status of your system setup program's
password security feature and allows you to verify and assign
a new admin password.
System
Password
(Not Set
default)
Displays the current status of the system's password security
feature and allows a new system password to be assigned and
verified.
Password
Changes
(Unlocked
default)
Determines the interaction between the System password and
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
password to modify the system password.
Chassis
Intrusion
(On-Silent
default)
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.
Intrusion
Alert
Acknowledges and clears a chassis intrusion alert.
TPM
Security
(Off
default)
Enables or disables the Trusted Platform Module security
device.
Execute
Disable
(On
default)
Enables or disables Execute Disable memory protection
technology.
Power Management
AC
Recovery
(Off
default)
Determines how the system responds when AC power is re-
applied after a power loss. Off commands the system to stay off
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
the system to return to the last power state the system was in
just before it was turned off.