Dell OptiPlex 7440 All-In-One Owners Manual - Page 71

Secure boot screen options, Performance screen options

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Secure boot screen options Option Secure Boot Enable Expert Key Management Description This option enables or disables the Secure Boot feature. ● Disabled ● Enabled Default setting: Enabled. Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom Mode option is disabled by default. The options are: ● PK ● KEK ● db ● dbx If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are: ● Save to File-Saves the key to a user-selected file ● Replace from File-Replaces the current key with a key from a user-selected file ● Append from File-Adds a key to the current database from a user-selected file ● Delete-Deletes the selected key ● Reset All Keys-Resets to default setting ● Delete All Keys-Deletes all the keys NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will restore to default settings. Performance screen options Option Description Multi Core Support Intel SpeedStep Specifies whether the process will have one or all cores enabled. The performance of some applications will improve with the additional cores. ● All - This option is enabled by default ●1 ●2 ●3 Allows you to enable or disable the Intel SpeedStep feature. ● Enable Intel SpeedStep Default setting: The option is enabled. C-States Control Allows you to enable or disable the additional processor sleep states. ● C states Default setting: The option is enabled. Limit CPUID Value Intel TurboBoost Allows you to limit the maximum value of the Standard CPUID function support. Some operation systems will not complete installation when maximum CPUID Function supported is greater than 3. ● Enable CPUID Limit - This option is disabled by default. Allows you to enable or disable the Intel TurboBoost mode of the processor. ● Enable Intel TurboBoost Default setting: The option is enabled. System setup 71

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Secure boot screen options
Option
Description
Secure Boot
Enable
This option enables or disables the
Secure Boot
feature.
●
Disabled
●
Enabled
Default setting: Enabled.
Expert Key
Management
Allows you to manipulate the security key databases only if the system is in Custom Mode. The
Enable
Custom Mode
option is disabled by default. The options are:
●
PK
●
KEK
●
db
●
dbx
If you enable the
Custom Mode
, the relevant options for
PK, KEK, db, and dbx
appear. The options are:
●
Save to File
—Saves the key to a user-selected file
●
Replace from File
—Replaces the current key with a key from a user-selected file
●
Append from File
—Adds a key to the current database from a user-selected file
●
Delete
—Deletes the selected key
●
Reset All Keys
—Resets to default setting
●
Delete All Keys
—Deletes all the keys
NOTE:
If you disable the
Custom Mode
, all the changes made will be erased and the keys will
restore to default settings.
Performance screen options
Option
Description
Multi Core
Support
Specifies whether the process will have one or all cores enabled. The performance of some applications
will improve with the additional cores.
●
All - This option is enabled by default
●
1
●
2
●
3
Intel SpeedStep
Allows you to enable or disable the Intel SpeedStep feature.
●
Enable Intel SpeedStep
Default setting: The option is enabled.
C-States Control
Allows you to enable or disable the additional processor sleep states.
●
C states
Default setting: The option is enabled.
Limit CPUID
Value
Allows you to limit the maximum value of the Standard CPUID function support. Some operation systems
will not complete installation when maximum CPUID Function supported is greater than 3.
●
Enable CPUID Limit - This option is disabled by default.
Intel TurboBoost
Allows you to enable or disable the Intel TurboBoost mode of the processor.
●
Enable Intel TurboBoost
Default setting: The option is enabled.
System setup
71