Gigabyte GA-Z77-HD4 - BIOS Features: Security and System Options

BIOS Setup
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& Hard Drive/CD/DVD ROM Drive/Floppy Drive/Network Device BBS Priorities
 Speciesthebootorderforaspecicdevicetype,suchasharddrives,opticaldrives,oppydiskdrives,
and devices that support Boot from LAN function, etc. Press <Enter> on this item to enter the submenu that
presents the devices of the same type that are connected. This item is present only if at least one device
for this type is installed.
& Bootup NumLock State
Enables or disables Numlock feature on the numeric keypad of the keyboard after the POST. (Default:
Enabled)
& Security Option
 Specieswhetherapasswordisrequiredeverytimethesystemboots,oronlywhenyouenterBIOSSetup.
Afterconguringthisitem,setthepassword(s)undertheAdministrator Password/User Password item.
Setup A password is only required for entering the BIOS Setup program.
System A password is required for booting the system and for entering the BIOS Setup program.
(Default)
& Full Screen LOGO Show
Allows you to determine whether to display the GIGABYTE Logo at system startup. Disabled skips the
GIGABYTE Logo when the system starts up. (Default: Enabled)
& Limit CPUID Maximum
(Note)
Allows you to determine whether to limit CPUID maximum value. Set this item to Disabled for Windows XP
operating system; set this item to Enabled for legacy operating system such as Windows NT4.0. (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: Disabled)
& VT-d
(Note)
Enables or disables Intel Virtualization Technology for Directed I/O. (Default: Enabled)
& 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.
(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.