Dell OptiPlex 745c (Early 2007) - Manual (Page 11)

(On default)
improves with additional logical processors. On enables hyperthreading.
Multiple CPU Core
(On default)
Determines whether the processor will have one or two cores enabled. On enables the second core.
Virtualization
(Off default)
Specifies whether a virtual machine monitor (VMM) can utilize the additional hardware capabilities provided by Intel
Virtualization technology.
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.
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.
HDD Acoustic Mode (Bypass
default)
l Quiet — The hard drive operates at its most quiet setting.
l Performance — The hard drive operates at its maximum speed.
l Bypass — Your computer does not test or change the current acoustics mode setting.
l Suggested — The hard drive operates at the level suggested by the drive manufacturer.
NOTE: Switching to performance mode may cause the drive to be noisier, but its performance is not affected.
Changing the acoustics setting does not alter your hard-drive image.
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.
Drive 0-n
Password
(Not Set
default)
Displays the current status of the hard drive's password security feature and allows a new hard drive 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 and the switch installed, 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
Detected
Acknowledges and clears a chassis intrusion alert.
TPM Security
(Off default)
Enables or disables the Trusted Platform Module security device.
TPM Activation
(Deactivate
default)
Activates or deactivates the Trusted Platform Module security device. The Clear option clears any data stored by a user that has
previously activated and used TPM.
NOTE: In order to activate Trusted Platform Module, the TPM Security option must be set to On.
Execute Disable
(On default)
Enables or disables Execute Disable memory protection technology.
Computrace
(Deactivate
default)
Enables or disables the BIOS interface of the optional Computrace service from Absolute Software. This optional monitoring service must
be purchased separately.
Activate permanently enables the BIOS-Computrace interface. Disable permanently disables the BIOS-Computrace interface. Deactivate
temporarily deactivates the BIOS-Computrace interface.