Dell Inspiron 5490 Service Manual - Page 61

Intel TurboBoost Technology, Intel Hyper-Threading Technology

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Secure Boot Secure Boot Mode NOTE: For Secure Boot to be enabled, the computer needs to be in UEFI boot mode and the Enable Legacy Option ROMs option needs to be turned off. Selects the Secure Boot operation mode. Default: Deployed Mode NOTE: Deployed Mode should be selected for normal operation of Secure Boot. Table 9. System setup options-Expert Key Management menu Expert Key Management Expert Key Management Enable Custom Mode Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified. Default: OFF Custom Mode Key Management Selects the custom values for expert key management. Default: PK Table 10. System setup options-Performance menu Performance Multi-Core Support Active Cores Changes the number of CPU cores available to the operating system. The default value is set to the maximum number of cores. Default: All Cores Intel SpeedStep Enable Intel SpeedStep Technology Enables or disables the Intel SpeedStep Technology to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production. Default: ON Enable C-State Control Enables or disables the CPU's ability to enter and exit low-power states. Default: ON Intel TurboBoost Technology Enable Intel Turbo Boost Technology Enables or disables the Intel TurboBoost mode of the processor. If enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor. Default: ON Intel Hyper-Threading Technology Enable Intel Hyper-Threading Technology Enables or disables the Intel Hyper-Threading Technology to use processor resources more efficiently. Default: ON Table 11. System setup options-Power Management menu Power Management Wake on AC Enables the computer to turn on and go to boot when AC power is supplied to the computer. Default: OFF System setup 61

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Secure Boot
NOTE:
For Secure Boot to be enabled, the computer needs to be in UEFI
boot mode and the Enable Legacy Option ROMs option needs to be
turned off.
Secure Boot Mode
Selects the Secure Boot operation mode.
Default: Deployed Mode
NOTE:
Deployed Mode should be selected for normal operation of Secure
Boot.
Table 9. System setup options—Expert Key Management menu
Expert Key Management
Expert Key Management
Enable Custom Mode
Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be
modified.
Default: OFF
Custom Mode Key Management
Selects the custom values for expert key management.
Default: PK
Table 10. System setup options—Performance menu
Performance
Multi-Core Support
Active Cores
Changes the number of CPU cores available to the operating system. The default
value is set to the maximum number of cores.
Default: All Cores
Intel SpeedStep
Enable Intel SpeedStep Technology
Enables or disables the Intel SpeedStep Technology to dynamically adjust processor
voltage and core frequency, decreasing average power consumption and heat
production.
Default: ON
Enable C-State Control
Enables or disables the CPU's ability to enter and exit low-power states.
Default: ON
Intel TurboBoost Technology
Enable Intel Turbo Boost Technology
Enables or disables the Intel TurboBoost mode of the processor. If enabled, the Intel
TurboBoost driver increases the performance of the CPU or graphics processor.
Default: ON
Intel Hyper-Threading Technology
Enable Intel Hyper-Threading Technology
Enables or disables the Intel Hyper-Threading Technology to use processor resources
more efficiently.
Default: ON
Table 11. System setup options—Power Management menu
Power Management
Wake on AC
Enables the computer to turn on and go to boot when AC power is supplied to the
computer.
Default: OFF
System setup
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