User Manual

ASUS E900 G4
4-15
4.6.11 CSM Configuration
ThisitemallowsyoutoconguretheCSM(CompatibilitySupportModule)itemstofully
support the various VGA, bootable devices and add-on devices for better compatibility.
CSM Support
This option allows you to enable or disable CSM Support.
Congurationoptions:[Disabled][Enabled]
The following items appear only when you set the CSM Support to [Enabled].
GateA20 Active
This allows you to set the GA20 option.
[UponRequest] GA20canbedisabledusingBIOSservices.
[Always] DonotallowdisablingGA20;thisoptionisusefulwhenanyRT
code is executed above 1MB.
Option ROM Messages
This allows you to set the display mode for option ROM.
Congurationoptions:[ForceBIOS][KeepCurrent]
INT19 Trap Response
This option allows you to control the BIOS reaction on INT19 trapping by Option ROM.
[Immediate] Executethetraprightaway.
[Legacyonly] Executethetrapduringlegacyboot.
Boot Option filter
ThisoptionallowsyoutocontroltheLegacy/UEFIROMspriority.
Congurationoptions:[UEFIandLegacy][Legacyonly][UEFIonly]
Network / Storage / Video
ThisoptionallowsyoutocontroltheexecutionofUEFIandLegacyPXE/Storage/
Video OpROM.
Congurationoptions:[UEFI][Legacy]
Other PCI devices
ThisitemdeterminestheOpROMexecutionpolicyfordevicesotherthanNetwork,
Storage, or Video.
Congurationoptions:[UEFI][Legacy]
4.6.12 NVMe Configuration
You may view the NVMe controller and Drive information if an NVMe device is connected.
4.6.10 USB Configuration
The items in this menu allow you to change the USB-related features.
4.6.13 Offboard SATA Controller Configuration
AllowsyoutoconguretheoffboardSATAcontrollerconguration.