Reference Guide

Option Description
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.
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
Option 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
Option 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.
TPM Advanced
Settings
This setting is enabled only when TPM Security is set to ON.
Table 6. TPM Advanced Settings Details
Option Description
TPM PPI Bypass Provision When set to Enabled allows the Operating
System to bypass Physical Presence Interface
(PPI).
TPM PPI Bypass Clear When set to Enabled allows the Operating
System to bypass Physical Presence Interface
(PPI).
TPM2 Algorithm Selection
Pre-operating system management applications 21