Hey there,
Hmmmm. I'm not sure what to say here. Firstly, there is no need to bump posts, or make duplicates about the same issue. I've looked at your other thread, and the advise given is sound on all accounts. Some of which you have chosen not to hear. Example being, that you have mismatched two sets of dimms. This is most likely the issue, specially given memtest86+ has thrown up errors and OCCT too. Regardless of whether or not DOCP was set, because there was errors with those apps (one inside the windows environment, and one outside) really shows that it's highly likely it's a ram issue.
To get to the point, and a solution, I'd suggest purchasing a 2 x 8 matched kit of ram, and selling what you have to offset the cost of the replacement.
Check your mobo QVL for compatible 2x8gb matched kits that will work.
One thing, that I've either missed, or has not been suggested yet, is updating your Bios to the latest version. Early A320/B350 AMD mobo's are/were very finicky with ram. Having your Bios up to date, and a cleared CMOS, may actually resolve your issue. The newest Bios will bring better memory compatibility.
If the bios update doesn't fix it, then get some matched DIMMS from the QVL for your mobo.
Good luck. Let us know how you get on.