Chapter 5: BIOS
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SHA256 PCR Bank
Use this feature to disable or enable the SHA256 Platform Configuration Register (PCR) bank
for the installed TPM device. The options are Disabled and
Enabled
.
Pending operation
Use this feature to schedule a TPM-related operation to be performed by a security device
for system data integrity. The options are
None
and
TPM Clear.
Platform Hierarchy
Use this feature to disable or enable platform hierarchy for platform protection. The options
are Disabled and
Enabled
.
Storage Hierarchy
Use this feature to disable or enable storage hierarchy for cryptographic protection. The
options are Disabled and
Enabled
.
Endorsement Hierarchy
Use this feature to disable or enable endorsement hierarchy for privacy control. The options
are Disabled and
Enabled
.
TPM2.0 UEFI Spec Version
Use this feature to select the Trusted Computing Group (TCG) specification version. Version
TCG_1_2 is compatible with Windows 8 and 10. Version TCG_2 is compatible with Windows
10 or later. The options are TCG_1_2 and
TCG_2
.
Physical Presence Spec Version
Use this feature to select the Physical Presence Interface version. This interace uses the
ACPI and allows the operating system and BIOS to work together to provide a platform for
users to administer the TPM. The options are
1.2
and 1.3.
Device Select
Use this feature to select the TPM version. TPM 1.2 will restrict support to TPM 1.2 devices.
TPM 2.0 will restrict support for TPM 2.0 devices. Select Auto to enable support for both
versions. The options are TPM 1.2, TPM 2.0, and
Auto
.
ACPI Settings
ACPI Sleep State
Use this feature to select which sleep state mode the system will enter when the Suspend
button is pressed. The options are Suspend Disabled and
S3 (Suspend to RAM)
.
High Precision Timer
Select Enabled to activate the High Precision Event Timer (HPET) that produces periodic
interrupts at a much higher frequency than a Real-time Clock (RTC) does in synchronizing
