System forced restart every 5-20 minutes of gameplay

I have pretty much the same rig as OP and have zero issues. My psu is 1000 watts Corsair platinum and power doesn't seem to be an issue. The 5950x runs about 53 degrees after an hour of playing 7 days. I'm air-cooled with a Noctua fan set up and have a huge case with plenty of case fans helping out.

This was my very first amd build and didn't realize that you needed to be carefull of your ram speed with amd cpu's. I bought 4200mhz ram when, in fact, the max speed for the 5950x is 3800. If I try to go past 3800mhz, my system becomes quite unstable and either constantly reboots or won't even leave setup. Leaving it at 3800 and the system runs great. So maybe take a look at your ram speed?? Just a thought....

 
So far, I ran Memtest86 about 4 runs and no errors came up with all RAM inserted.  I am pretty sure that people just do 1 at at time to eliminate and see which one has errors.  If I am mistaken about that let me know.  I could try more passes.

I checked my 8pin connectors to the GPU and I have 3 8 pin connectors, 2 were split so I had 2 from PSU to 3 on the GPU.  I tried connecting 3 8 pins from PSU to 3 8 pins to GPU and it still crashes.

I don't think my temperatures were excessive for GPU or CPU but again I don't have proper VRAM readings I'll have to have those up when I test again.

Any other thoughts?

 
Any other thoughts?
I think memtest86+ will tell you which stick is bad. Could be wrong.

I would do stress testing with prime95 and furmark to see if I could repro the crash outside the game.

How are you monitoring temps? hwinfo is good.

What speed and timings are you running your ram at?

Did you check your power connections to the cpu?

 
Okay.  So I had flashed my bios I thought but I saw my bios were pretty old date so I checked to see if anything was new and they were still pretty old bios.  I flashed new latest bios and so far no problems!  Can't believe I didn't have the latest ones after all this checking everything.  So far the longest I've gone without crashing.  Thank you everyone for the help I really appreciate all of it.

 
Okay.  So I had flashed my bios I thought but I saw my bios were pretty old date so I checked to see if anything was new and they were still pretty old bios.  I flashed new latest bios and so far no problems!  Can't believe I didn't have the latest ones after all this checking everything.  So far the longest I've gone without crashing.  Thank you everyone for the help I really appreciate all of it.
Yeah since Gen 3 Ryzen the BIOS updates have been pretty regular. Almost as often as software patches. Lots of fixes and optimization comes with though.

 
I would not have suspected a BIOS update (microcode) would fix it. I have been let down each time I tried AMD so I buy almost exclusively Intel X series now and have never had an issue that was BIOS/microcode related. I'll remember this.

 
I would not have suspected a BIOS update (microcode) would fix it. I have been let down each time I tried AMD so I buy almost exclusively Intel X series now and have never had an issue that was BIOS/microcode related. I'll remember this.
To be honest, that surprised me too. The best I could figure is that it's because of the 5950x CPU being power hungry / not set up correctly power wise by default. I've built and used over a dozen Ryzen based computers so far from every single generation, not once have I seen a bios related issue other than the latest gen CPU not being compatible with motherboards out of the box, requiring that flashback feature to get it initiated.

Besides, I'd much rather deal with minor issues like that than to support lazy companies that refuse to evolve simply due to lack of competition and forcing the world to pay a premium for ancient tech. I'm happy they're getting their butts kicked hard right now, hopefully that will be enough motivation to start evolving in tech again.

 
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Still working.  I went from crashes every 5-20 minutes or so, sometimes more frequently, to being able to play all day.  Not a single crash since flashing bios to latest version.  I tried MANY things but had crashes until that and changed nothing else recently in that last attempt.  Frequent play of a couple hours a day since and 0 problems.  Thank you all for the suggestions again.

 
Still working.  I went from crashes every 5-20 minutes or so, sometimes more frequently, to being able to play all day.  Not a single crash since flashing bios to latest version.  I tried MANY things but had crashes until that and changed nothing else recently in that last attempt.  Frequent play of a couple hours a day since and 0 problems.  Thank you all for the suggestions again.
Enjoy the game!

 
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