x570 Taichi and 3900x Tons of issues

Hey all, new to this forum and first time ASRock mobo purchaser. I recently built a new PC with the below specs:

CPU: Ryzen 3900x (w/ wraith cooler)
Mobo: Asrock X570 Taichi
RAM: XPG D60 DDR4 3600mhz (AX4U360038G17-DT60 that reads as Samsung die)
PSU: Tried OCZ GSX700 and Corsair RM 850x
GPU: GTX 1060 6GB and RTX 2080ti (both tested in all configurations)

Ive tried multiple attempts to get the RAM at rated speed of 3600MHZ using the XMP profile and it just loops until it resets. Currently its running 1333mhz so 2666 and I was able to crawl it up to 3533 (with piss poor timings at a 3:53 ratio but noticed more freezing). I have the 3900x running at stock with no adjustments made to it in the BIOS because ANY change I make I'll either get a D7 error D2 or boot looping until it rolls back those BIOS settings. The x570 was just updated to the new BIOS from 1.6 (new BIOS is 2.1 I believe). Both BIOS versions wont allow RAM to post at rated speeds but most concerning to me is the recent hard freezes that I have been having. I thought it was due to the PSU so I went and got a new one and stuck the RM 850x in, same thing. These hard freezes were happening with RAM at stock of 2666mhz in single channel, dual channel and dual channel at 3533. I tried another set of RAM thats 3000mhz A-Data and that froze as well.

So of my 2 problems with the RAM not booting to even close to the right speeds and the freezing I'm starting to lean towards my mobo needing an RMA.

What I have tried for the RAM:
-booting ram in slot A1+A2 (worked)
-Booting ram in slot A1+B1 (worked)
-Booting ram in slot A2+B2 (worked)
-Booting with 1 stick of ram in each slot which worked about 80% of the time with multiple reboots before hitting windows.
-Booting into XMP (didnt work on either profile 1 or 2)
-Manually setting speed of 3600mhz (didnt work at 1.2v,1.35,1.38v,1.41v)
-Ran Memtest86+ and it passed 4 passes with 0 errors on both individually and both in at same time.

What I have tried for the freezing:
-Installing new PSU (older 700 watt to brand new 850 watt)...still get freezing
-reinstalling Nvidia graphics drivers with DDU (didnt work)
-Swapped 2080ti for GTX 1060
-Swapped CPUs

My CPU temps are never above 68, my 2080ti stays around 70 which I know is hot but its a blower design (I didnt buy it). System freezes with 1060 in as well.

Voltages are boosting to around 1.48 peak but drop back down to .99x on the cores.

Any other info needed to get a better picture?

I am going to try rolling back to an earlier BIOS. It shipped on 1.6 and I was having issues with that one and I jumped right to 2.1. I can try 1.7A.

Do you have your fabric clock the same as your 3600 Memory in 1:1?

And also I used Samsung SSD Migration to an SSD from my old HDD. I read that might be an issue but I'm hesitant to agree because it seems to be more "setting related" or compatibility.

Did you ever find a solution to this? I have been having almost the exact same problem with the 3700x and x570 Taichi. I have the same power supply as well.

XMP profile settings didn't work for me. Settings suggested by Ryzen DRAM calculator worked fine.

I received a RMA board and it seems to be working stable at proper XMP timings manually entered.