Dell P21T owner manual Kek

Table 6. Secure Boot

Option	Description
Secure Boot Enable	Allows you to enable or disable the
	secure boot. The options are:
	•	Disabled
	•	Enabled (Default Setting)
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.
Table 7. Performance
Option	Description
C-States Control	Allows you to enable or disable the
	additional processor sleep states.
	Default Setting: Enable C states.
Table 8. Power Management
Option	Description
AC Behavior	Allows the computer to power on automatically, when AC adapter is
	plugged. The option is disabled.

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