Launch Storage Oprom Policy; Launch Video Oprom Policy - ASROCK J3455-ITX User Manual

CSM (Compatibility Support Module)
CSM
Enable to launch the Compatibility Support Module. Please do not disable unless
you're running a WHCK test. If you are using Windows 8.1 64-bit and all of your
devices support UEFI, you may also disable CSM for faster boot speed.
*The default of this option is set to [Disabled] (UEFI mode). You can change the
Boot Mode setting from UEFI mode to Legacy BIOS mode by set CSM to [Enabled].
Launch PXE OpROM Policy
Select UEFI only to run those that support UEFI option ROM only. Select Legacy
only to run those that support legacy option ROM only.

Launch Storage OpROM Policy

Select UEFI only to run those that support UEFI option ROM only. Select Legacy
only to run those that support legacy option ROM only.

Launch Video OpROM Policy

Select UEFI only to run those that support UEFI option ROM only. Select Legacy
only to run those that support legacy option ROM only.
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