Gigabyte GA-970A-D3P - Boot Mode Selection; Network Stack; Ipv4 Pxe Support; Ipv6 Pxe Support

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BIOS Setup
& OS Type
 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OS Type is set to Windows 8.
& 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.
LegacyOnly  EnableslegacyoptionROMonly.(Default)
UEFI Only Enables UEFI option ROM only.
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)
& Network stack
Disables or enables booting from the network to install a GPT format OS, such as installing the OS from
theWindowsDeploymentServicesserver.(Default:Disable)
& Ipv4 PXE Support
 EnablesordisablesIPv4PXESupport.ThisitemiscongurableonlywhenNetwork stack is enabled.
& Ipv6 PXE Support
 EnablesordisablesIPv6PXESupport.ThisitemiscongurableonlywhenNetwork stack is enabled.