Dell XPS 13 9315 2-in-1 Service Manual - Page 21

Power, Lid Switch, Intel® Speed Shift Technology, Security, TPM 2.0 Security On, Chassis intrusion

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Table 8. System setup options-Power menu (continued) Power NOTE: If enabled, the computer will not go to sleep, Intel® Rapid Start will be disabled automatically, and the operating system power option will be blank if it was set to Sleep. Lid Switch Enable Lid Switch Power On Lid Open Enables or disables the lid switch. Enables the computer to power up from the off state whenever the lid is opened. Default: ON Intel® Speed Shift Technology Enables or disables the Intel® Speed Shift Technology support. Setting this option to enable allows the operating system to select the appropriate processor performance automatically. Default: ON Table 9. System setup options-Security menu Security TPM 2.0 Security On TPM 2.0 Security On Select whether or not the Trusted Platform Model (TPM) is visible to the OS. Default: ON PPI Bypass for Enable Commands Enables or disables the OS to skip BIOS Physical Presence Interface (PPI) user prompts when issuing TPM PPI enabled and activate commands. Default: OFF PPI Bypass for Disable Commands Enables or disables The OS to skip BIOS PPI user prompts when issuing TPM PPI Disable and Deactivate commands. Default: OFF Attestation Enable Enables to control whether the TPM Endorsement Hierarchy is available to the OS. Disabling this setting restricts the ability to use the TPM for signature operations. Default: ON Key Storage Enable Enables to control whether the TPM Endorsement Hierarchy is available to the OS. Disabling this setting restricts the ability to use the TPM for storing owner data. Default: ON SHA-256 Enables or disables the BIOS and the TPM to use the SHA-256 hash algorithm to extend measurements into the TPM PCRs during BIOS boot. Default: ON Clear Enables or disables the computer to clear the PTT owner information, and returns the PTT to the default state. Default: OFF PPI Bypass for Clear Commands Enables or disables the operating system to skip BIOS Physical Presence Interface (PPI) user prompts when issuing the Clear command. Default: OFF Chassis intrusion Chassis intrusion Controls the chassis intrusion feature. System setup 21

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Table 8. System setup options—Power menu (continued)
Power
NOTE:
If enabled, the computer will not go to sleep, Intel® Rapid Start will be
disabled automatically, and the operating system power option will be blank if
it was set to Sleep.
Lid Switch
Enable Lid Switch
Enables or disables the lid switch.
Power On Lid Open
Enables the computer to power up from the off state whenever the lid is opened.
Default: ON
Intel® Speed Shift Technology
Enables or disables the Intel® Speed Shift Technology support. Setting this
option to enable allows the operating system to select the appropriate processor
performance automatically.
Default: ON
Table 9. System setup options—Security menu
Security
TPM 2.0 Security On
TPM 2.0 Security On
Select whether or not the Trusted Platform Model (TPM) is visible to the OS.
Default: ON
PPI Bypass for Enable Commands
Enables or disables the OS to skip BIOS Physical Presence Interface (PPI) user
prompts when issuing TPM PPI enabled and activate commands.
Default: OFF
PPI Bypass for Disable Commands
Enables or disables The OS to skip BIOS PPI user prompts when issuing TPM PPI
Disable and Deactivate commands.
Default: OFF
Attestation Enable
Enables to control whether the TPM Endorsement Hierarchy is available to the
OS. Disabling this setting restricts the ability to use the TPM for signature
operations.
Default: ON
Key Storage Enable
Enables to control whether the TPM Endorsement Hierarchy is available to the
OS. Disabling this setting restricts the ability to use the TPM for storing owner
data.
Default: ON
SHA-256
Enables or disables the BIOS and the TPM to use the SHA-256 hash algorithm to
extend measurements into the TPM PCRs during BIOS boot.
Default: ON
Clear
Enables or disables the computer to clear the PTT owner information, and
returns the PTT to the default state.
Default: OFF
PPI Bypass for Clear Commands
Enables or disables the operating system to skip BIOS Physical Presence
Interface (PPI) user prompts when issuing the Clear command.
Default: OFF
Chassis intrusion
Chassis intrusion
Controls the chassis intrusion feature.
System setup
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