@PeterF I didn't try the batch file for the update yet but I did try first checking the ROM ID and the BIN file in the download is for a S2MS300 and it doesn't match the existing BIOS ID S2ML300. See below. My rig has ver. S2ML3A12.
C:\BIOS>afuwinX64 /S
+---------------------------------------------------------------------------+
| AMI Firmware Update Utility v3.05.00 |
| Copyright (C)2012 American Megatrends Inc. All Rights Reserved. |
+---------------------------------------------------------------------------+
Reading flash ............... done
- System ROM ID = S2ML300
- System ROM GUID = b5c59087-feac-4b41-9d80790ba5aa070f
- System ROM Secure Flash = Diable.
C:\BIOS>
C:\BIOS>afuwinX64 S2MS3B10.BIN /D
+---------------------------------------------------------------------------+
| AMI Firmware Update Utility v3.05.00 |
| Copyright (C)2012 American Megatrends Inc. All Rights Reserved. |
+---------------------------------------------------------------------------+
Reading flash ............... done
- ME Data Size checking . ok
- FFS checksums ......... ok
4 - Error: ROM file ROMID is not compatible with existing BIOS ROMID.
C:\BIOS>
Let me know any input on this one I'm all hears
Bill