Gigabyte H81M-H M.2 User Manual page 25

& Limit CPUID Maximum
Allows you to determine whether to limit CPUID maximum value. (Default: Disabled)
& Execute Disable Bit
Enables or disables Intel
computer, reducing exposure to viruses and malicious buffer overflow attacks when working with its
supporting software and system. (Default: Enabled)
& Intel Virtualization Technology
Enables or disables Intel
Technology will allow a platform to run multiple operating systems and applications in independent partitions.
With virtualization, one computer system can function as multiple virtual systems. (Default: Enabled)
& Intel TXT(LT) Support
Enables or disables Intel
provides a hardware-based security foundation. (Default: Disabled)
& VT-d
(Note)
Enables or disablesIntel
& Windows 8 Features
Allows you to select the operating system to be installed. (Default: Other OS)
& CSM Support
Enables or disables UEFI CSM (Compatibility Support Module) to support a legacy PC boot process.
Always
Never
This item is configurable only when Windows 8 Features is set to Windows 8 or Windows 8 WHQL.
& Boot Mode Selection
Allows you to select which type of operating system to boot.
UEFI and Legacy
Legacy Only
UEFI Only
This item is configurable only when CSM Support is set to Always.
& LAN PXE Boot Option ROM
Allows you to select whether to enable the legacy option ROM for the LAN controller. (Default: Disabled)
This item is configurable only when CSM Support is set to Always.
& Storage Boot Option Control
Allows you to select whether to enable the UEFI or legacy option ROM for the storage device controller.
Disabled
UEFI only
Legacy only
Legacy First
UEFI First
This item is configurable only when CSM Support is set to Always.
& Other PCI Device ROM Priority
Allows you to select whether to enable the UEFI or Legacy option ROM for the PCI device controller other
than the LAN, storage device, and graphics controllers.
Legacy OpROM
UEFI OpROM
This item is configurable only when CSM Support is set to Always.
(Note) This item is present only when you install a CPU that supports this feature. For more information about
Intel CPUs' unique features, please visit Intel's website.
®
(Note)
(Note)
Execute Disable Bit function. This function may enhance protection for the
®
(Note)
Virtualization Technology. Virtualization enhanced by Intel
®
(Note)
Trusted Execution Technology (Intel
®
Virtualization Technology for Directed I/O. (Default: Enabled)
®
Enables UEFI CSM. (Default)
Disables UEFI CSM and supports UEFI BIOS boot process only.
Allows booting from operating systems that support legacy option ROM or UEFI
option ROM. (Default)
Allows booting from operating systems that only support legacy Option ROM.
Allows booting from operating systems that only support UEFI Option ROM.
Disables option ROM.
Enables UEFI option ROM only.
Enables legacy option ROM only. (Default)
Enables legacy option ROM first.
Enables UEFI option ROM first.
Enables legacy option ROM only.
Enables UEFI option ROM only. (Default)
TXT). Intel
®
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Virtualization
®
Trusted Execution Technology
®