Avalue Technology EMX-Q87 User Manual page 63

3.4.2.10 Option ROM Policy

Launch Storage OpROM policy [Legacy only]
Enable or Disable Boot Option For Legacy Mass Storage Devices with Option ROM
Configuration options: [Do not launch] [UEFI only] [Legacy only]

Other PCI Device ROM priority priority [UEFI OpROM]
Configuration options: [UEFI OpROM] [Legacy OpROM]
EMX-Q87 User's Manual
EMX-Q87 User's Manual 63