Dell PowerEdge C4140 EMC Installation and Service Manual - Page 50
System Security Settings details, On without Pre-boot Measurements
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3. On the System Setup Main Menu screen, click System BIOS. 4. 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 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 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. 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. TPM Advanced Settings This setting is enabled only when TPM Security is set to ON. 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. 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 Enables you to set the time that the system should take to turn on after AC power is restored to the system. This option is set to Immediate by default. User Defined Enables you to set the User Defined Delay option when the User Defined option for AC Power Recovery Delay (60 s to 600 Delay is selected. s) 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. In-Band Manageability Interface When set to Disabled, this setting hides the Management Engine's (ME), HECI devices, and the system's IPMI devices from the operating system. This prevents the operating system from changing the ME power capping settings, and blocks access to all in-band management tools. All management should be managed through out-ofband. This option is set to Enabled by default. 50 Pre-operating system management applications