Reference Guide

SystemLogs

Table 23. SystemLogs

Attribute Name Description

BiosLogClear

Prevents or allows the system event log to be cleared on the next boot.

Possible values:

• Keep — Does not clear the system event log on the next boot.

• Clear — Clears the system event log on the next boot.

PowerLogClear

Prevents or allows the power event log to be cleared on the next boot.

Possible values:

• Keep — Does not clear the power event log on the next boot.

• Clear — Clears the power event log on the next boot.

ThermalLogClear

Prevents or allows the thermal event log to be cleared on the next boot.

Possible values:

• Keep — Does not clear the thermal event log on the next boot.

• Clear — Clears the thermal event log on the next boot.

TPMSecurity

Table 24. TPMSecurity

Attribute Name Description

SHA256

Sets the hash algorithm used for TPM 2.0 measurements.

Possible values:

• Disabled — Sets hash algorithm to SHA-1.

• Enabled — Sets hash algorithm to SHA-256.

• SHA384 — Sets hash algorithm to SHA-384.

• SHA512 — Sets hash algorithm to SHA-512.

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.

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.