Dell E74S Reference Manual - Page 19
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Table 20. TPM 1.2 security information (continued)
Option
Description
and deactivated. When set to Clear, all the contents of the TPM are cleared. This option is set to None
by default.
Table 21. TPM 2.0 security information
Option
Description
TPM Information
TPM Security
Enables you to control the reporting mode of the TPM. The TPM Security option is set to Off by
default. You can only modify the TPM Status, and TPM Activation if the TPM Status field is set to
either On with Pre-boot Measurements or On without Pre-boot Measurements.
When TPM 2.0 is installed, the TPM Security option is set to On or Off. This option is set to Off by
default.
TPM Information
Changes the operational state of the TPM. This option is set to No Change by default.
TPM Firmware
Indicates the firmware version of the TPM.
TPM Hierarcy
Enables, disables, or clears the storage and endorsement hierarchies. When set to Enabled, the storage
and endorsement hierarchies can be used.
When set to Disabled, the storage and endorsement hierarchies cannot be used.
When set to Clear, the storage and endorsement hierarchies are cleared of any values, and then reset
to Enabled.
TPM Advanced
Specifies TPM Advanced Settings details.
Settings
Table 22. System Security details
Option
Intel(R) TXT
Memory Encryption
Intel(R) SGX
SGX Package Info In-Band
Access
PPMRR Size
SGX QoS
Select Owner EPOCH input type
NOTE:
The TPM menu is available only when the TPM module is installed.
Description
Enables you to set the Intel Trusted Execution Technology (TXT) option. To enable
the Intel TXT option, virtualization technology and TPM Security must be enabled with
Pre-boot measurements. This option is set to Off by default. It is set On for Secure
Launch (Firmware Protection) support on Windows 2022.
Enables or disables the Intel Total Memory Encryption (TME) and Multi-Tenant (Intel
TME-MT). When option is set to Disabled, BIOS disables both TME and MK-TME
technology. When option is set to Single Key BIOS enables the TME technology. When
option is set to Multiple Keys, BIOS enables the TME-MT technology. This option is set
to Disabled by default.
Enables you to set the Intel Software Guard Extension (SGX) option. To enable the Intel
SGX option, processor must be SGX capable, memory population must be compatible
(minimum x8 identical DIMM1 to DIMM8 per CPU socket, not support on persistent
memory configuration), memory operating mode must be set at optimizer mode, memory
encryption must be enabled and node interleaving must be disabled. This option is set to
Off by default. When this option is to Off, BIOS disables the SGX technology. When this
option is to On, BIOS enables the SGX technology.
Enables you to access the Intel Software Guard Extension (SGX) package info in-band
option. This option is set to Off by default.
Sets the PPMRR size.
Enables or disables the SGX quality of service.
Enables you to select Change to New random Owner EPOCHs or Manual User
Defined Owner EPOCHs. Each EPOCH is 64-bit. After generating new EPOCH by
selecting Change to New random Owner EPOCHs, the selection reverts back to
Manual User Defined Owner EPOCHs.
Pre-operating system management applications
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