Gigabyte H81M-H M.2 - Page 25

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& Limit CPUID Maximum
(Note)
Allows you to determine whether to limit CPUID maximum value. (Default: Disabled)
& Execute Disable Bit
(Note)
Enables or disables Intel
®
Execute Disable Bit function. This function may enhance protection for the
computer, reducing exposure to viruses and malicious buffer overow attacks when working with its
supporting software and system. (Default: Enabled)
& Intel Virtualization Technology
(Note)
Enables or disables Intel
®
Virtualization Technology. Virtualization enhanced by Intel
®
Virtualization
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
(Note)
Enables or disables Intel
®
Trusted Execution Technology (Intel
®
TXT). Intel
®
Trusted Execution Technology
provides a hardware-based security foundation. (Default: Disabled)
& VT-d
(Note)
Enables or disablesIntel
®
Virtualization Technology for Directed I/O. (Default: Enabled)
& 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 Enables UEFI CSM. (Default)
Never Disables UEFI CSM and supports UEFI BIOS boot process only.
This item is congurable 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 Allows booting from operating systems that support legacy option ROM or UEFI
option ROM. (Default)
Legacy Only Allows booting from operating systems that only support legacy Option ROM.
UEFI Only Allows booting from operating systems that only support UEFI Option ROM.
This item is congurable 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 congurable 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 Disables option ROM.
UEFI only Enables UEFI option ROM only.
Legacy only Enables legacy option ROM only. (Default)
Legacy First Enables legacy option ROM rst.
UEFI First Enables UEFI option ROM rst.
This item is congurable 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 Enables legacy option ROM only.
UEFI OpROM Enables UEFI option ROM only. (Default)
This item is congurable 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.