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Table 35. System setup options—Power menu (continued)
Power
Power On Lid Open
Intel Speed Shift Technology
Table 36. System setup options—Security menu
Security
TPM 2.0 Security
TPM 2.0 Security On
Attestation Enable
Key Storage Enable
SHA-256
Clear
Physical Presence Interface (PPI) Bypass
for Clear Commands
84
BIOS Setup
When enabled, it allows the computer to turn on from the off state whenever the
lid is opened.
By default, the Power On Lid Open option is enabled.
Enables or disables the Intel Speed Shift Technology support. When enabled, the
operating system selects the appropriate processor performance automatically.
By default, the Intel Speed Shift Technology option is enabled.
Allows you to enable or disable TPM.
By default, the TPM 2.0 Security On option is enabled.
For additional security, Dell Technologies recommends keeping TPM On enabled
to allow these security technologies to fully function.
The Attestation Enable option controls the endorsement hierarchy of TPM.
Disabling the Attestation Enable option prevents TPM from being used to
digitally sign certificates.
By default, the Attestation Enable option is enabled.
For additional security, Dell Technologies recommends keeping the Attestation
Enable option enabled.
NOTE:
When disabled, this feature may cause compatibility issues or loss of
functionality in some operating systems.
The Key Storage Enable option controls the storage hierarchy of TPM, which is
used to store digital keys. Disabling the Key Storage Enable option restricts the
ability of TPM to store owner's data.
By default, the Key Storage Enable option is enabled.
For additional security, Dell Technologies recommends keeping the Key Storage
Enable option enabled.
NOTE:
When disabled, this feature may cause compatibility issues or loss of
functionality in some operating systems.
Allows you to control the hashing algorithm that is used by the TPM. When
enabled, the TPM uses the SHA-256 hashing algorithm. When disabled, the TPM
uses the SHA-1 hash algorithm.
By default, the SHA-256 option is enabled.
For additional security, Dell Technologies recommends keeping the SHA-256
option enabled.
When enabled, the Clear option clears information that is stored in the TPM
after exiting the computer's BIOS. This option returns to the disabled state when
the computer restarts.
By default, the Clear option is disabled.
Dell Technologies recommends enabling the Clear option only when TPM data is
required to be cleared.
By default, the PPI Bypass for Clear Commands option is disabled.
For additional security, Dell Technologies recommends keeping the PPI Bypass
for Clear Commands option disabled.
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