ADLINK MXE-200i - Manual (Page 76)

62 BIOS Setup
INT19 Trap Response
Sets BIOS reaction to INT19 trapping by Option ROM, where
selecting Immediate executes the trap immediately, and Post-
poned executes the trap during a legacy boot.
Boot option filter
Sets Legacy/UEFI ROM priority.
Network
Sets execution of UEFI and Legacy PXE OpROM.
Storage
Sets execution of UEFI and Legacy Storage OpROM.
Video
Sets execution of UEFI and Legacy Video OpROM.
Other PCI devices
Determines OpROM execution policy for devices other than
Network, Storage, or Video.