The original configuration request was for 16GB of memory in a C250 M2. In using the Netformx UCS version (beta), it seems to be telling me that I need 4 pairs of 8GB DIMM's for each processor and with two processors, it would appear that 64GB total memory is the minimum memory size. Using anything less than 4/processor results in a validation error. Netformx indicates the smallest DIMM pair available is 8GB (2x4GB).
Is this the case? It appears that the M1 was happy with less!