A deep dive into why my custom-built PC keeps BSOD'ing

Seems like you've covered almost all bases. But here's something you might not have thought of: check for BIOS updates specifically addressing RAM stability, Ryzen chips can be picky with memory. Also, maybe downclock your RAM and see if that stabilizes the system. RAM might pass tests and still cause issues at high speeds.

Oh man, BSODs are a pain. Heard about similar issues with Ryzen and certain SSD models. There can be weird incompatibilities. Check with other folks to see if your SSD model has a bad rep with Ryzen platforms or if a firmware update for the SSD is available.

Dude, that sucks... just wanted to say I feel for you, bro. Hope you get it sorted out soon!

Have you tried turning it off and on again? 😂 Sorry couldn't resist. For real though, maybe it's haunted. Ever thought of an exorcism for your PC?

This may be a long shot, but any nearby electronics that could be causing interference? Like weirdly, I found my router caused my old rig to crash occasionally. Also, check your motherboard for any signs of physical damage, sometimes a microscopic fissure or a solder problem can do the darndest things.

Had random crashes before and it was the motherboard which was the culprit after all. A tiny hairline crack in one of the traces. Took ages to identify it. Might not be your case, but if you have a spare mobo lying around, could be worth testing with a different one.

Checking event viewer in Windows? Could give some clues, maybe a recurring error just before each crash? Also, I'd make sure your motherboard's getting good power from the PSU. You mention swapping PSUs but try another cable or rail maybe?

Unlikely but maybe a long shot - could software be at fault? Rare instances where certain app configurations cause systems to destabilize. Try a clean boot into safe mode and monitor stability. By doing this you're essentially running the system with minimal drivers and programs - could help isolate whether it's software or hardware.