Ram Compatibility?

[MagicalDuck]

So I seem to have a problem with ram compatibility, or at least I came to this conclusion.

Motherboard: MSI x470 Gaming Plus
CPU: AMD Ryzen 7 2700X
RAM: G.Skill RipjawsV DDR4 32GB (4x8GB) 3200MHz

I bought ram as 2 kits, containing 2x8 sticks each. So I have 4x8 currently. Google does say that this ram indeed works with this processor, but I never actually got it working stable. I've taken pictures of every single blue screen that ever happened, and the weird thing is - these ram work as a kit of 2 sticks. It works in any slot of the motherboard, tried it one by one, kits of 2 (even mismatched), and even with 3 ram sticks installed. I updated everything that was possible to update, re-installed windows 4 times by now, tried older versions of Windows 10. Every single stick works in every slot, but it won't work after the 4th stick is installed. Then I am getting a lot of crashes, from Direct X related, to "Memory_Management" and so many others. All the parts are brand new, and I am currently using 2 sticks of ram, for the past month without any crashes. Yet, after adding another 2 sticks, PC won't stay on for too long, will be BSOD'ing soon. Somewhere between 30 seconds and 12 hours. (Yes, it held up quite a few times for about 12 hours). I even changed the PSU to a way more powerful one, from a 500w one to a 850w one, if not enough voltage was the problem, turns out - not. I did try to change the voltage a few times, change the speeds, but then it won't be stable even with 2 sticks. Currently it is running at 2133MHz with 2 sticks installed. I even thought they might overheat, bought way better case coolers for this, and now everything stays nice and cool inside - still did not fix anything.

When it did work for 12 hours, I did benchmark everything, all 32 gigs of ram worked perfectly when using them at a 100%, even when using CPU at a 100% at the same time. Then I might be just browsing YouTube, or literally doing nothing, PC could be just idle - and it would blue-screen, without any explanation as to why.

I'm out of ideas by now, nothing left to update, out of money to buy another ram or another MB. All I know that I bought 32 gigs of ram, and I can only use 16 of those. Yet no matter which ones, they just don't work as a 4 stick kit, for some reason. Anyone have any clues or ideas what do to?

P.S.

I attached a few of the blue-screens, yet keep in mind I got over 50 of them, and most are different. Nearly every time it does that, it's something different.