Dang it - if you'd found our Zen garden clubhouse we could have had this sorted some time ago
Having an A320 board and a 2000 series ryzen means you simply can not run high RAM speeds, despite the motherboard offering the options to do so
I don't have an image on-hand for ryzen 2000, but these are the official AMD specs for the original 1000 series
The problem is not the motherboard or the memory - it's the memory controller inside the CPU, specifically the SoC.
Since the SoC is shared hardware with PCI-E lanes, USB, SATA and infinity fabric,
errors can be seemingly random and unrelated, and memory testing often passes fine with issues occuring at low load or the transition from lower load to higher load (simply a power draw increase, too fast for the SoC to keep up)
This is also the common cause of the USB dropouts common on early ryzen setups, future boards worked on reducing the voltage drops and future CPU's raised the default SoC voltage
Quite often you can simply raise the SoC voltage in the BIOS and solve these issues or reduce them, but with an entry level motherboard and 2000 series CPU 3200MT/s will be your maximum you can achieve with two single rank sticks
Your first post gave zero information on the RAM, so no one focused on that. People can only output answers with the information you share.
I see, thanks.
I also plan to add heatsinks to them when I resolve this problem.
Both identical, Patriot Signature Line 2*8gb PSD48G266681
View attachment 285321 View attachment 285322
Scrolling on down, we find zentimings showing what you're currently running - and a model name for the RAM
Patriot Signature Line DDR4 8GB 2666MHz (PC4-21300) UDIMM Memory Module 1.2 Volt with Heatshield : Amazon.com.au: Computers
2667MT/s with 19-19-19-43 timings - you're running slightly slower than this, but that may be the board adjusting things for stability or perhaps you did that manually.
Certain stability features on ryzen do not work (or disable automatically) below 2667MT/s, Gear Down mode is one of them. This feature changes odd-number timings (like your RAM has) to even numbers
This was not a feature always available and was introduced in Agesa 1.0.0.6 in motherboard BIOS updates - your zentimings screenshot showed this is active, but you may still get better stability rounding all those values up to even (19-19-19-43 to 20-20-20-44)
Memory OC Showdown: Frequency vs. Memory Timings - AMD Community (archive.org)
The only result of concern there is your SoC voltage is unusually low
Googling isn't finding me a default SoC voltage as it seems to vary a little by motherboard, but none of my AM4 systems default below 0.95v, with 1.10 to 1.15v needed for some of the RAM setups
(Not all are as high speed as my main PC)
My ryzen 3700x system requires 1.05v for 3200, so that's likely a good starting point since it will droop under load.
Raise it in small steps every time you have a crash until they stop - but don't exceed 1.20v on the SoC voltage. (The name itself may vary in your BIOS, VSOC, SoC voltage, etc)
If you can't change the SoC voltage, then set the timings manually to even values and try 2400 then 2133, and see if that helps.