Reference Guide

System Security Settings details
About this task
The System Security Settings screen details are explained as follows:
Option Description
CPU 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
NOTE: The TPM menu is available only when the TPM module is installed.
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, and TPM Activation 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.
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.
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.
When TPM 2.0 is installed, TPM 2 Algorithm option is available. It enables you to select a hash algorithm
from those supported by the TPM (SHA1, SHA256). TPM 2 Algorithm option must be set to SHA256,
to enable TXT.
Intel(R) SGX Enables or disables the Intel Software Guard Extension (SGX) option. This option is set to Software by
default.
NOTE: The SGX menu is available, only when the SGX supported processor is installed.
SGX Launch
Control Policy
Allows controlling the Launch Control Policy (LCP) of Software Guard Extensions (SGX) technology. This
option is set to Unlocked 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 Delay
Sets the time delay for the system to power up after AC power is restored to the system. This option is
set to Immediate by default.
User Defined
Delay (60 s to
240 s)
Sets the User Defined Delay option when the User Defined option for AC Power Recovery Delay is
selected.
UEFI Variable
Access
Provides varying degrees of securing UEFI variables. When set to Standard (the default), UEFI variables
are 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.
Pre-operating system management applications 17