I checked the bios of akcent, he correctly mod with SLP: ASUS_FLASH you flah usb fat32 or Ntfs?? (not NTFS) Save the BIOS files on a device such as USB disk (FAT32 format), hard disk (FAT32 format) and floppy drive.
-Motherboard Manufacturer and Model : Asus Sabertooth Z77 -Bios Revision : 1403 -Bios Type : EFI -Bios SLIC :ASUS 2.1 -Bios Link : h**p://rghost.ru/39417206