Table 15. System setup options—Pre-boot Behavior menu (continued)
Pre-boot Behavior
MAC Address Pass-Through Replaces the external NIC MAC address with the selected MAC address from
the system.
By default, the System Unique MAC Address option is enabled.
Sign of Life
Early Keyboard Backlight
By default, the Early Keyboard Backlight option is enabled.
Table 16. System setup options—Virtualization menu
Virtualization
Intel Virtualization Technology
Enable Intel Virtualization Technology
(VT)
When enabled, the system will be able to run a Virtual Machine Monitor
(VMM).
By default, the option is enabled.
VT for Direct I/O When enabled, the system will be able to perform Virtualization Technology for
Direct I/O (VT-d).
By default, the option is enabled.
Intel Trusted Execution Technology
(TXT)
Enable Intel Trusted Execution
Technology (TXT)
Specifies whether a measured Virtual Machine Monitor (MVMM) can use the
additional hardware capabilities that are provided by Intel Trusted Execution
Technology. The following must be enabled in order to enable Intel TXT.
● Trusted Platform Module (TPM)
● Intel Hyper-Threading
● All CPU cores (Multi-Core Support)
● Intel Virtualization Technology
● Intel VT for Direct I/O
By default, the option is disabled.
DMA Protection
Enable Pre-Boot DMA Support
By default, the Enable Pre-Boot DMA Support option is enabled.
Enable OS Kernel DMA Support
By default, the Enable OS Kernel DMA Support option is enabled.
Table 17. System setup options—Performance menu
Performance
Multi Core Support
Active Cores Enables to change the number of CPU cores available to the operating system.
By default, the All Cores option is enabled.
Multiple Atom Cores Enables to change the number of CPU cores available to the operating system.
By default, the All Cores option is enabled.
Intel SpeedStep
Enable Intel SpeedStep Technology Enables the system to dynamically adjust processor voltage and core
frequency, decreasing average power consumption and heat production.
By default, the option is enabled.
C-States Control
76 BIOS setup
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