Dell Pro 14 Essential PV14255 handleiding

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Dell

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Table 12. BIOS Setup options—Security menu(continued)

Security Description

Clear When enabled, the Clear option clears information that is stored in the TPM

after exiting the BIOS setup of your computer. 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.

TPM State Enables or disables the Trusted Platform Module (TPM). This is the normal

operating state for the Trusted Platform Module (TPM) when you want to use

its complete array of capabilities.

By default, the TPM State option is enabled.

Intel Platform Trust Technology (PTT)

Intel PTT is a firmware-based Trusted Platform Module (fTPM) device that is

part of Intel chipsets. It provides credential storage and key management that

can replace the equivalent functionality of a discrete TPM chip.

NOTE: The options that are listed apply to computers without a discrete

Trusted Platform Module (TPM).

PTT On Enables or disables the Intel PTT option.

By default, the PTT On option is enabled.

For additional security, Dell Technologies recommends keeping the PTT On

option enabled.

Physical Presence Interface (PPI) Bypass

for Clear Commands

The PPI Bypass for Clear Commands option allows the operating system to

manage certain aspects of PTT. When enabled, you are not prompted to confirm

changes to the PTT configuration.

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.

Clear

When enabled, the Clear option clears the information that is stored in the PTT

fTPM after exiting the BIOS setup of your computer. 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 PTT fTPM

data needs to be cleared.

AMD Firmware TPM (fTPM)

AMD Firmware TPM (fTPM) is a firmware-based TPM device that is part of AMD

chipsets. It provides credential storage and key management that can replace the

equivalent functionality of a discrete TPM chip.

NOTE: The options that are listed apply to computers without a discrete

Trusted Platform Module (TPM) chip.

fTPM On Enables the AMD firmware TPM option.

By default, the fTPM On option is enabled.

For additional security, Dell Technologies recommends keeping the fTPM On

option enabled.

Physical Presence Interface (PPI) Bypass

The Physical Presence Interface (PPI) Bypass options can be used to allow the

operating system to manage certain aspects of the AMD fTPM. If this option

is enabled, you are not prompted to confirm certain changes to the fTPM

configuration.

BIOS Setup 119

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