COMeT10-3900/BIOS Settings
v1.1
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Page 19
4.3.12 TPM
Disable/enable the onboard TPM 2.0 device as well as the Platform
Configuration Registers (PCR) for each supported hash algorithm.
Thermal Sampling
Period
Specifies the polling interval in 10ths of seconds.
A value of 0 tells the driver to use interrupts. The
granularity of the sampling period is 0.1 seconds.
For example, if the sampling period is 30
seconds, then _TSP needs to report 300; if the
sampling period is 0.5 seconds, then choose 5.
0 to 100
0
DPTF Policies
Controls the temperature of the ACPI Active Trip Point, which is the point at
which the OS turns the fan on.
• Active Policy Enables/disables the Active Policy algorithm,
which cools a platform through the removal of
heat instead of limiting the power or
performance of the device. Usually a platform
fan is run at various speeds in response to the
thermal conditions.
Enable,
Disable
Enable
• Passive
Policy
Sets the Passive Policy, which is responsible for
limiting power and performance of components
in response to a participant's temperature rising
above the platform defined trip point. Passive
Policy 2.0 uses a new ACPI object to configure the
temperature thresholds. It may not be
compatible with Linux.
Disable,
Passive
Policy 1.0,
Passive
Policy 2.0
Passive Policy
2.0
• TRT Revision Sets the Thermal Relationship Table (TRT), which
informs the OS the relative thermal contribution
of each device to each thermal zone.
Traditional,
Priority
Priority
• Critical Policy Enables/disables the Critical Policy. In the event
the platform reaches a critical temperature, the
Critical Policy is responsible for gracefully
shutting down the system.
Enable,
Disable
Enable
• Power Boss Enables/disables the Power Boss policy. The goal
of the policy is to prevent platform shutdown
due to a power “brown out” due to a peak or
sustained power load that is not supported by
the present power source.
Enable,
Disable
Enable
Feature
Description
Choices
Default
Feature
Description
Choices
Default
Security Device
Support
Enables/disables BIOS support for security device.
If disabled, the OS does not show a security device
and the TCG EFI protocol and INT1A interface are
not available.
Enable,
Disable
Enable
SHA-1 PCR Bank Enables/disables SHA-1 PCR Bank.
NOTE:
Only available if Security Device Support is
enabled.
Enable,
Disable
Enable
SHA256 PCR
Bank
Enables/disables SHA256 PCR Bank.
NOTE:
Only available if Security Device Support is
enabled.
Enable,
Disable
Enable
Pending
operation
Selecting TPM Clear schedules a reset operation
for the security device and executes after saving
the BIOS and rebooting the system.
NOTE:
Only available if Security Device Support is
enabled.
None, TPM
Clear
None
