Dell OptiPlex 7440 Owner's Manual page 43

Option
Chassis Intrusion
CPU XD Support
OROM Keyboard Access
Admin Setup Lockout
HDD Protection Support
Table 5. Secure Boot
Option
Secure Boot Enable
Expert Key Management
Description
• Disable
• Activate
This field controls the chassis intrusion feature. The options are:
• Disabled - This option is selected by default.
• Enabled
Allows you to enable or disable the execute disable mode of the processor.
• Enable CPU XD Support - This option is enabled by default.
Allows you to determine if you access the Option Read Only Memory
(OROM) configuration screens via hotkeys during boot. These settings
prenvent access to the Intel RAID (CTRL+I) or Intel Management Engine
BIOS Extension (CTRL+P/F12).
• Enabled - User may enter OROM configuration screens via the hotkey.
This option is enabled by default.
• One-Time Enable - User can enter the OROM configuration screens
via the hotkeys during the next boot. After the boot, the setting will
revert to disabled.
• Disabled - User can not enter the OROM configuration screens via the
hotkey.
Allows you to enable or disable the option to enter setup when an admin
password is set.
• Enable Admin Setup Lockout - This option is disabled by default.
Allows you to enable or disable the HDD Protection feature.
• HDD Protection Support - This option is disabled by default.
Description
This option enables or disables the Secure Boot feature. To enable the
Secure Boot, the computer has to be in UEFI boot mode and the Enable
Legacy Option ROMs option needs to be turned-off.
• Disabled
• Enabled - This option is selected by default.
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 of Custom Mode Key Management are:
• PK - This option is selected by default.
• 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
43