I should have captured this in the previous post, but here goes...
When I remove the ECC function, and effectively enable "all" the memory, no matter what combination of RAM I use in what DIMM slot, Port1 ALWAYS reports itself as 15GB even though Port0 shows the proper 16GB. And remeber, this is prior to any formatting, or even building a RAID set in BIOS. Is the ACARD bootstrapping some sort of real-time kernal or OS and using a portion of RAM at boot to run its protocols? Even one stick of 4GB ram in any given slot (Port0 or Port1), has 1GB take from it. Now, I did NOT try to see if it steals 1GB from the top when the 9010 is set to single port mode, i.e. all the RAM in one contiguous block accesable through Port0. Maybe it would hand over all the RAM then. Jason, any thoughts?

Wade