Dell Inspiron 16 Plus 7640 Owners Manual - Page 95

Table 40. System setup options-Pre-boot Behavior menu continued

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Table 40. System setup options-Pre-boot Behavior menu (continued) Pre-boot Behavior NOTE: Errors deemed critical to the operation of the computer hardware will always halt the computer. USB-C Warnings Enable Dock Warning Messages Fastboot Enables or disables dock warning messages. Selects the speed of the UEFI boot process Default: Thorough Extend BIOS Post Time Selects the BIOS POST load time. Default: 0 seconds Table 41. System setup options-Virtualization Support menu Virtualization Support Intel® Virtualization Technology Enable Intel Virtualization Technology (VT) Enables or disables Intel Virtualization technology. Default: ON VT for Direct I/O Enable Intel VT for Direct I/O Enables or disables Intel Virtualization technology for direct I/O. Default: ON DMA Protection Enable Pre-Boot DMA Support Enables or disables pre-boot DMA protection for both internal and external ports. Default: ON Enable OS Kernel DMA Support Enables or disables Kernel DMA protection for both internal and external ports. Default: ON Table 42. System setup options-Performance menu Performance Multi-core Support Active Cores Allows to change the number of CPU cores available to the operating system. Default: All Cores Multiple Atom Cores Allows to change the number of Atom cores available to the operating system. Default: All Cores Intel SpeedStep Enable Intel® SpeedStep Technology Enables or disables Intel® SpeedStep technology. Default: ON C-States Control Enable C-State Control Enables or disables C-states. Default: ON Intel® Turbo Boost Technology Enable Turbo Boost Technology Enables or disables Turbo Boost mode of the processor. Default: ON BIOS Setup 95

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Table 40. System setup options—Pre-boot Behavior menu (continued)
Pre-boot Behavior
NOTE:
Errors deemed critical to the operation of the computer hardware
will always halt the computer.
USB-C Warnings
Enable Dock Warning Messages
Enables or disables dock warning messages.
Fastboot
Selects the speed of the UEFI boot process
Default: Thorough
Extend BIOS Post Time
Selects the BIOS POST load time.
Default: 0 seconds
Table 41. System setup options—Virtualization Support menu 
Virtualization Support
Intel® Virtualization Technology
Enable Intel Virtualization Technology
(VT)
Enables or disables Intel Virtualization technology.
Default: ON
VT for Direct I/O
Enable Intel VT for Direct I/O
Enables or disables Intel Virtualization technology for direct I/O.
Default: ON
DMA Protection
Enable Pre-Boot DMA Support
Enables or disables pre-boot DMA protection for both internal and external
ports.
Default: ON
Enable OS Kernel DMA Support
Enables or disables Kernel DMA protection for both internal and external ports.
Default: ON
Table 42. System setup options—Performance menu 
Performance
Multi-core Support
Active Cores
Allows to change the number of CPU cores available to the operating system.
Default: All Cores
Multiple Atom Cores
Allows to change the number of Atom cores available to the operating system.
Default: All Cores
Intel SpeedStep
Enable Intel® SpeedStep Technology
Enables or disables Intel® SpeedStep technology.
Default: ON
C-States Control
Enable C-State Control
Enables or disables C-states.
Default: ON
Intel® Turbo Boost Technology
Enable Turbo Boost Technology
Enables or disables Turbo Boost mode of the processor.
Default: ON
BIOS Setup
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