[CorrND]

The Intel download center is showing BIOS v0025 from 2/7/14 available for DN2820FYK:

https://downloadcenter.intel.com/SearchR...+DN2820FYK


EDIT: Release notes:

PRODUCTS: DN2820FYK (Standard BIOS)

BIOS Version 0025 - FYBYT10H.86A.0025.2014.0207.1453

About This Release:

• Date: February 7, 2014
  
• TXE Firmware: 1.0.2.1060
  
• Framework BIOS Reference Code: Based on 1.3.2
  
• Integrated Graphics
  • Option ROM: Build 1007 PC 14.34
    
  • GOP Driver: 7.1.1005
    
• LAN
  • Option ROM: v2.57 PXE 2.1 Build 083
    
  • UEFI Driver: 2.0.23
    
• Visual BIOS: 2.2.2
  

New Fixes/Features:

• Fixed issue that prevented booting and installing some operating
  systems, such as SteamOS*.
  
• Updated VBIOS to version 1007_20140128 to fix loss of HDMI audio.
  
• Fixed issue where Windows 7* x64 EFI operating system
  installation fails.
  
• Removed [USB3.0 (XHCI mode) support] option from BIOS Setup and
  enabled it by default.
  
• Fixed issue where USB legacy SMI support is not available.
  
• Fixed issue where Hard Disk Drive Password length did not match
  the specification.
  
• Fixed issue where USB 3.0 ports do not work.
  
• Fixed issue where items are greyed out in the Boot menu.
  
• Fixed issue where system auto-wakes.
  
• Added Event Log for CPU Thermal Trip.
  
• Fixed issue where Graphics item does not show up in Intel®
  Integrator Toolkit.
  
• Changed maximum number of USB mass devices from 6 to 16.