Supermicro X10DAX and Quad Channel

[Logistics]

So my dilemma is that I can't seem to get my board to run in Quad Channel. I have an X10DAX with Dual E5 2690 v3's and originally it had four 16GB sticks of Samsung ECC. Figuring I needed to have a stick for each DIMM1 slot I purchased four more identical sticks of Samsung M393A2G40DB0-CPB. So, now I have eight 16GB sticks for a total of 128GB of RAM. When I install the ram so that Each DIMM1 slots is populated the system will not post even if I clear the CMOS, remove the battery, what-have-you. But according to what I'm reading in the Manual, which is admittedly not very clear, populating each DIMM1 slot in the setup I have should yield Quad Channel. But again, it won't post this way so I am just running A1, A2, C1, C2, E1, E2, and G1, G2, which only produces Dual Channel. Makes sense because this is essentially Dual Channel per CPU. But I don't understand why the system won't post with each DIMM1 slot populated instead. These are 2R sticks, and each channel allows for 8R. Do I need to populate every RAM slot in the system to achieve Quad Channel?

Thanks in advance for your help guys. The X10DAX manual and RAM configuration PDF provided by Supermicro just does not spell this scenario out for me.

-Matthew

[Logistics]

Okay, it turns out I was in Quad Channel the entire time, but HWiNFO64 was not recognizing this fact, while CPU-Z does.