I would RMA it with Intel.
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Run memtest overnight.
Usually problems like this are RAM or motherboard. Uncommonly they may be the CPU as well, so troubleshoot and try to exclude the most likely causes first.
RMA cpu+mobo.
My Mobo too?
Use these settings on top of XMP
SVID Behavior = Typical
Digi+ LLC = 4
TX VDDQ = 1.35v
IMC VDD = 1.35v
I figure this is in BIOs? I'll try to dig around for it tonight when I'm off work
Went through 3x 13900k and two Asus boards before finally getting another CPU and changing over to an MSI Tomahawk z790. No issues since.
What you describe is the hell I went though from December through April. Fortunately bought in store replacement warranty and they were able to replicate the problems each time and replaced.
I would suggest if you can, buy a cheap 12100 or 13100 and try it in your system. You might have to eat that cost to try and figure out if it’s processor or motherboard related. However, if it’s CPU related, it’s possible your motherboard is causing the issue to kill CPU(s), as was in my case.
hej man did you find any tests to check what's wrong?
I run almost the same set up, instead of Asus 790, I run z690 Prime A.
The software I use for work keeps crashing. Checked with the developers and they made 3 debug builds and finally assured me something is wrong with my hardware, most probably a CPU bug.
Currently I am on an email chain with Intel where they ask me random questions every 2 days. thanks to your post, I am reading that ASUS boards could be at fault too? Too complex for me, sadly.
13900k here Asus Prime z790 also
Processor and mobo replaced processor was last and it turned to be my processor was the issue.
I'm sad to hear everyone is having issues with this issue. Such a crazy oversight on Intel or Mobo manufacturers.
I'm glad I'm not crazy,(this isn't to say one is better than others) but Amazon has Ryzen on sale so may switch back to that idk yet.
A big let down for my experience for a high end chip