I updated to the latest one, thinking that would fix it. Bios version 4005. I tried one stick at a time and the ones minus a red tick-mark in the image above were the only ones that ran with no issue. If I populate the DIMM slots in the recommended config it only detects only one stick of RAM.
I hope I don't have to RMA..... I can run dual channel at the far two beige slots like I said previously, but otherwise it's a no go.
Maybe this is simpler:
A1 + C1 = Works for dual channel.
A1 works with single channel
A2 Does not detect RAM. No Post
B1 does detect RAM and will post, but only in single channel.
B2 does not detect RAM. No Post
D2, D1, C2 do not detect RAM and will not Post in single channel.