Reference Guide

Attribute Name Description
NOTE: This value cannot be changed if TPM is already owned.
TpmActivation
Activates and enables the TPM normal state for TPM use.
Possible values:
• Enabled — Activates the TPM.
• Disabled — Displays the current activation state of TPM.
NOTE: Deactivate is a read-only possible value. TPM can be deactivated only from the
BIOS setup screen.
NOTE: Make sure admin password is set before enabling TpmActivation (on specic
platforms).
TpmClear
When you enable the TpmClear attribute, TPM ownership is cleared during the next boot, and the
system rmware sets the value of the attribute to disabled. When you disable the TpmClear
attribute, TPM ownership remains unchanged.
Possible values:
• Enabled
• Disabled
NOTE: You cannot enable or disable this feature using Dell Command |
Congure.
TpmPpiAcpi
Controls whether the system accept ACPI physical presence commands from the OS.
• Enabled — System accepts ACPI physical presence commands from the OS.
• Disabled — System does not accept ACPI physical presence commands from the OS.
Tpmppiclearoverride
When enabled tpmppiclearoverride performing the TPM clear command within operating system
does not require user interaction. When disabled, performing the TPM clear command within the
operating system does require user interaction.
• Enabled
• Disabled
NOTE: You can enable Tpmppiclearoverride in manufacturing mode or while
setting up the BIOS Setup Administrator password.
TpmPpiDpo
Controls the physical presence requirement for the following operations: Disable, Deactivate, and
SetOwnerInstall_False.
Possible values:
• Enabled
• Disabled
TpmPpiPo
Controls the physical presence requirement for the following operations: Enable, Activate, and
SetOwnerInstall_True.
Possible values:
• Enabled — Physical presence is not required to perform any of these operations.
• Disabled — Physical presence is required to perform these operations.
TpmSecurity
Controls whether the Trusted Platform Module (TPM) in the system is enabled and visible to the
operating system.
Possible values:
• Enabled — BIOS turns on the TPM during POST, and can be used by the operating system.
Attributes supported in Dell Command | PowerShell Provider 2.2 55