Dell E43S Series Installation And Service Manual page 42

Option Description
Intel(R) AES-NI Improves the speed of applications by performing encryption and decryption by using the Advanced Encryption
Standard Instruction Set (AES-NI). This option is set to Enabled by default.
System Password Sets the system password. This option is set to Enabled by default and is read-only if the password jumper is not
installed in the system.
Setup Password Sets the setup password. This option is read-only if the password jumper is not installed in the system.
Password Status Locks the system password. This option is set to Unlocked by default.
TPM Security
Enables you to control the reporting mode of the TPM. The TPM Security option is set to Off by default. You can
only modify the TPM Status, TPM Activation, and the Intel TXT fields if the TPM Status field is set to either On
with Pre-boot Measurements or On without Pre-boot Measurements.
TPM Information Changes the operational state of the TPM. This option is set to No Change by default.
TPM Status Specifies the TPM status.
TPM Command Controls the Trusted Platform Module (TPM). When set to None, no command is sent to the TPM. When set to
Activate, the TPM is enabled and activated. When set to Deactivate, the TPM is disabled and deactivated. When
set to Clear, all the contents of the TPM are cleared. This option is set to None by default.
This field is read-only when TPM Security is set to Off. The action requires an additional reboot before it can take
effect.
Intel(R) TXT Enables or disables the Intel Trusted Execution Technology (TXT) option. To enable the Intel TXT option,
virtualization technology and TPM Security must be enabled with Pre-boot measurements. This option is set to Off
by default.
Power Button Enables or disables the power button on the front of the system. This option is set to Enabled by default.
AC Power Recovery Sets how the system behaves after AC power is restored to the system. This option is set to Last by default.
AC Power Recovery Sets the time delay for the system to power up after AC power is restored to the system. This option is set to
Delay Immediate by default.
User Defined Delay Sets the User Defined Delay option when the User Defined option for AC Power Recovery Delay is selected.
(60 s to 240 s)
UEFI Variable Provides varying degrees of securing UEFI variables. When set to Standard (the default), UEFI variables are
Access accessible in the operating system per the UEFI specification. When set to Controlled, selected UEFI variables are
protected in the environment and new UEFI boot entries are forced to be at the end of the current boot order.
Secure Boot Enables Secure Boot, where the BIOS authenticates each pre-boot image by using the certificates in the Secure
Boot Policy. Secure Boot is set to Disabled by default.
Secure Boot Policy When Secure Boot policy is set to Standard, the BIOS uses the system manufacturer's key and certificates to
authenticate pre-boot images. When Secure Boot policy is set to Custom, the BIOS uses the user-defined key and
certificates. Secure Boot policy is set to Standard by default.
Secure Boot Mode Configures how the BIOS uses the Secure Boot Policy Objects (PK, KEK, db, dbx).
If the current mode is set to Deployed Mode, the available options are User Mode and Deployed Mode. If the
current mode is set to User Mode, the available options are User Mode, Audit Mode, and Deployed Mode.
Options
User Mode
42 Pre-operating system management applications
NOTE: The TPM menu is available only when the TPM module is installed.
CAUTION: Clearing the TPM results in the loss of all keys in the TPM. The loss of TPM keys may affect
booting to the operating system.
Description
In User Mode, PK must be installed, and BIOS performs signature verification on
programmatic attempts to update policy objects.