Dell EMC PowerEdge C6420 Manual de referência - Página 20
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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
Enables you to set the system password. This option is read-only if the password jumper is not installed in
Password
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 Type: 1.2-NTC 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 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
Sets how the system behaves after AC power is restored to the system. This option is set to Last by
Recovery
default.
AC Power
Enables you to set the time that the system should take to turn on after AC power is restored to the
Recovery Delay
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
Delay (60 s to
Recovery Delay is selected.
600 s)
UEFI Variable
Provides varying degrees of securing UEFI variables. When set to Standard (the default), UEFI variables
Access
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
When set to Disabled, this setting hides the Management Engine's (ME), HECI devices, and the system's
Manageability
IPMI devices from the operating system. This prevents the operating system from changing the ME
Interface
power capping settings, and blocks access to all in-band management tools. All management should be
managed through out-of-band. This option is set to Enabled by default.
20
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.
NOTE:
BIOS update requires HECI devices to be operational and DUP updates require IPMI interface
to be operational. This setting needs to be set to Enabled to avoid updating errors.