Asus Z10PH-D16 - CSM Configuration

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Chapter 4: BIOS setup
4.4.9 CSM Configuration
CSM Support [Enabled]
This option allows you to enable or disable CSM Support.
Congurationoptions:[Disabled][Enabled]
GateA20 Active [Upon Request]
This allows you to set the GA20 option.
Congurationoptions:[UponRequest][Always]
Option ROM Messages [Force BIOS]
This allows you to set the display mode for option ROM.
Congurationoptions:[ForceBIOS][KeepCurrent]
Boot Option filter [Legacy only]
This option allows you to control the Legacy/UEFI ROMs priority.
Congurationoptions:[UEFIandLegacy][Legacyonly][UEFIonly]
Network / Storage / Video [Legacy]
ThisoptionallowsyoutocontroltheexecutionofUEFIandLegacyPXE/Storage/Video
OpROM.
Congurationoptions:[UEFI][Legacy]
Other PCI devices [Legacy]
ThisitemdeterminestheOpROMexecutionpolicyfordevicesotherthanNetwork,Storage,
or Video.
Congurationoptions:[UEFI][Legacy]