

Supported partition table schemes include MBR and GPT. As such, they are stored as files on a file system that can be accessed by the firmware. OS loaders are a class of UEFI applications. The boot configuration is controlled by a set of global NVRAM variables, including boot variables that indicate the paths to the loaders. The UEFI specification defines a "boot manager" as a 'firmware policy engine' that is in charge of loading the OS loader and all necessary drivers. The second reason is speeding up Windows boot as only with a UEFI installation you can completely disable CSM (compatibility support module). without a patched OROM) as BIOS version 3404 on the Rampage IV series has the Intel UEFI driver. The first is getting TRIM to work under RAID using the original, unmodified ASUS UEFI BIOS (i.e. UEFI installation is primarily needed for two things.
