Dell EMC PowerEdge R640 Installation And Service Manual page 74

System Security
You can use the System Security screen to perform specific functions such as setting the system password, setup password and
disabling the power button.
Viewing System Security
To view the System Security screen, perform the following steps:
Steps
Power on, or restart your system.
Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
On the System Setup Main Menu screen, click System BIOS.
On the System BIOS screen, click System Security.
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 Enables you to set 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 Enables you to set the system setup password. This option is read-only if the password jumper is not installed in
the system.
Password Status Enables you to lock 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 Enables you to change 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.
TPM Advanced This setting is enabled only when TPM Security is set to ON.
Settings
Intel(R) TXT Enables you to set 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 you to set the power button on the front of the system. This option is set to Enabled by default.
74 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.