Dell EMC XC640 Series Installation And Service Manual page 48

Option Description
In-Band When set to Disabled, this setting will hides the Management Engine's (ME), HECI devices, and the
Manageability system's IPMI devices from the operating system. This prevents the operating system from changing the
Interface ME 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.
Intel 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 Sets the system password. This option is set to Enabled by default and is read-only if the password
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 Sets how the system behaves after AC power is restored to the system. This option is set to Last by
Recovery default.
AC Power Sets the time delay for the system to power up after AC power is restored to the system. This option is
Recovery Delay set to Immediate by default.
User Defined Sets the User Defined Delay option when the User Defined option for AC Power Recovery Delay is
Delay (60 s to selected.
240 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.
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 When Secure Boot policy is set to Standard, the BIOS uses the system manufacturer's key and
Policy 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 Specifies the list of certificates and hashes that secure boot uses to authenticate images.
Policy Summary
48 Pre-operating system management applications
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.
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.