Dell OptiPlex 7040-Small Form Factor Owner's Manual page 40

Table 9. Security (continued)
Option
Computrace
Chassis Intrusion
CPU XD Support
OROM Keyboard Access
Admin Setup Lockout
HDD Protection Support
Table 10. Secure boot
Option
Secure Boot Enable
Expert key Management
40 System Setup
Description
● Disabled
● Enabled (default)
This field lets you Activate or Disable the BIOS module interface of the optional Computrace
Service from Absolute Software. Enables or disables the optional Computrace service
designed for asset management.
● Deactivate - This option is disabled by default.
● Disable
● Activate
Allows you to control the chassis intrusion feature. You can set this option to:
● Enable
● Disable
● On-Silent — Enabled by default if chassis intrusion is detected.
Allows you to enable or disable the Execute Disable mode of the processor. This option is
enabled by default.
This option determines whether users are able to enter Option ROM Configuration screens
via hotkeys during boot. Specifically, these settings are capable of preventing access to Intel
RAID (CTRL+I) or Intel Management Engine BIOS Extension (CTRL+P/F12)
● Enable — User may enter OROM configuration screens via the hotkey.
● One-Time Enable — User may enter OROM configuration screens via the hotkeys on
next boot only. After next boot, the setting will revert to disabled.
● Disable — User may not enter OROM configuration screens via the hotkey.
This option is set to Enable by default.
Allows you to enable or disable the option to enter Setup when an Administrative password is
set. This option is not set by default.
Allows you to enable or disable the HDD Protection feature. This option is an advanced
feature, which is intended to keep the HDD data secure and unchangeable. By default, this
option is disabled.
Description
Allows you to enable or disable Secure Boot feature
● Disable
● Enable
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.