Option
Description
TPM Information
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, 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
.
When TPM 1.2 is installed, the
TPM Security
option is set to
Off
,
On with Pre-boot Measurements
, or
On
without Pre-boot Measurements
.
Table 4. TPM 1.2 security information
TPM information
Description
TPM Information
Changes the operational state of the TPM. This option is set to
No Change
by default.
TPM Firmware
Indicates the firmware version of the TPM.
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.
When TPM 2.0 is installed, the
TPM Security
option is set to
On
or
Off
. This option is set to
Off
by default.
Table 5. TPM 2.0 security information
TPM information
Description
TPM Information
Changes the operational state of the TPM. This option is set to
No Change
by default.
TPM Firmware
Indicates the firmware version of the TPM.
TPM Hierarcy
Enable, disable, or clear the storage and endorsement hierarchies. When set to
Enabled
,
the storage and endorsement hierarchies can be used.
When set to
Disabled
, the storage and endorsement hierarchies cannot be used.
When set to
Clear
, the storage and endorsement hierarchies are cleared of any values,
and then reset to
Enabled
.
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.
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.
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 will hide 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
34
Pre-operating system management applications
