Hello guys, sorry to be asking for advice straight away and not giving to the community (I will do in the future!).
Alright so the setup is a 3700x stock with a Aorus Elite x570 and some Patriot Viper 3600mhz CL17 ram, it's not on the QVL but the Ryzen RAM calculator says it should run at this speed based on them being Hynix CJR die. I haven't tried that much with them, tried increasing DRAM volts to 1.40v however it just seemed to give the memory management blue screen even faster than when it was at 1.35v, the SOC voltage is on auto so sits around 1.08v, one thing that got me thinking is maybe the Infinity Fabric is the issue? Once I overclock the RAM maybe the motherboard has clocked the IF to 1800mhz and because SOC volts are too low I'm getting issues? Without going into too much detail all I'd like is the IF and RAM to be 1:1 with decent timings (XMP would be great).
Try setting your ram to DOCP, then decoupling your IF (remains 1:1 up to 3600/1800), then boot and run memtest/some cpu stability test.
My first 3700X could only do 1600 on the IF anything higher would be an instant BSOD or shutdown. I found this out when I decoupled my IF and clocked my memory up to 4200 and had 2000% coverage in memtest without any errors.