This looks like a RAM issue. The dumps are identical, they're all 0x124 WHEA_UNCORRECTABLE_ERROR for a fatal machine check exception - that's a fatal hardware error. They all point at memory (RAM) as the problem too...
Code:
FAILURE_BUCKET_ID: 0x124_0_AuthenticAMD_MEMORY__UNKNOWN_FATAL_IMAGE_AuthenticAMD.sys
The MEMORY reference in that failure bucket is pretty clear.
You do have a curious RAM config with two 16GB and two 8GB RAM sticks. I'm betting the PC didn't come that way, so I would remove whatever RAM you have added post-purchase and see whether it still BSODs. TBH Removing RAM sticks one (or two) at a time is the best way to locate the problem than running a memory tester. It's very possible the the new RAM isn't entirely compatible with the existing RAM, or even compatible with the motherboard.
