WHEA UNCORRECTABLE ERROR

I am using an Msi GE75 raider 8SG. Everytime i try to play division 2 i get the error. i7-8759H undervolted .140. Gpu RTX 2080 NOT overclocked. 16 gig ram at 3000mhz. Been running like this since may 2019 and just now i am starting to get crashes all with the same error.

 

If it goes away when you set the CPU voltage back to stock, then your undervolt is unstable.

 

Remove or lower the undervolt. Most likely cache instability, but can also be core related. You can try to lower the cache ratio. If that error goes away, then the cache is not stable at that undervolt. If it still happens, it's the core that is unstable.

You should still use HWinfo64 and run the sensors window in the background and watch for WHEA "CPU Cache L0 errors" or "Internal Parity errors" which also means you are unstable.

 

If it ran from last May until now and never had the error, the BSOD is probably a symptom of a deeper root cause. If I had to guess, it's probably getting hotter than it used to and the undervolt is too much for higher temperatures. When temps go up, the voltage has to follow suit to remain stable. And, what both of the above posts state is accurate. Decreasing the undervolt should help, but it will make it run even hotter. So, while you are using HWINFO64, make special note of the temperatures. If it is getting too hot, a repaste might fix the problem with no need to change the undervolt.

 

Yep, the cause is undervolting (+heat). Undervolting is quite temperature dependent, for example -100mV can be stable at up to 80 degrees, but can become unstable at 85+. Undervolt potential also goes down as the CPU ages, too.

You may also get some Machine Check Exception errors

Btw, if you don't want to reduce your undervolt settings, you can try capping the maximum multiplier - the higher the clock, the more voltage it needs, even on single core loads. Capping the maximum multiplier will reduce single core Turbo, but can allow you to keep a higher undervolt setting.

 

It could be too high undervolt, but the timing is coincedental with the Intel microcode patch that disables voltage tuning - breaks undervolting - so first make sure your undervolt is really being applied.

If your undervolt has stopped being applied it could be a BIOS update or the Windows update causing it, check your Windows Update history.

It could also be forced air heating that starts around this time of the year is heating up the ambient temperature and messing up your tuning stability - both undervolt and overclock can be affected.

Also, aging paste - if you repasted - can be an issue, if you re-pasted it might be time for another treatment.

Sometimes it's game / app sensitive. I've seen a long stable setup get sensitive with a new game or app change (VM versions for example), so it could be that too.

If it's just a pure sensitivity for that game, try a new XTU profile with a lower undervolt that is stable. It might only need to be a +5mV change - -135mV might work. Then you can switch to / from that reduced undervolt profile with the XTU UI before / after using the game.

Good luck, and please let us know what you find is going on.