Jgt,
You were not able to rollback to BIOS version 0044 since once you updated to BIOS version 0099, it will no longer be possible to downgrade the BIOS to version 0048 or earlier.
Something very important is that Intel® Desktop Boards do not currently support Server operating system and this applies for Microsoft based or Open based.
However, I am still waiting for the information on your requested, since you were able to use this OS on the DG61DL motherboard, revision 206.
Regards.