What are the cons of BIOS fast boot?
What are the cons of BIOS fast boot?
Fast Boot changes which devices are initialized during startup/POST and might not show the splash screen which can sometimes make it more difficult to enter the Setup utility. Fast Startup can cause the UEFI/BIOS to skip loading of various option ROMs and other firmwares to speed up POST time. Normally this is fine, but if you have add-in cards with their own option ROMs (example: RAID adapters, HBAs, specialized GPUs, some network cards, PXE boot) then it could prevent them from functioning properly. If you don't have any special add-in cards and Fast Startup doesn't cause any issues for you, then I would enable it to reduce POST time. Personally, I have it disabled because I don't mind waiting a few extra seconds and also I have configured RAID on my system which loads an option ROM at boot that Fast Startup interferes with.