Rounding Errors Prime95 Ryzen 7 2700x

Discussion created by extraordinarii on Feb 23, 2019
Latest reply on Feb 26, 2019 by extraordinarii

I've been struggling with enumerable hardware issues associated with my system and have narrowed the issue down to the CPU. 


AIDA64 will generate hardware errors when stressing the system, and Prime95 Blend will generate hardware errors expressed as rounding errors across all cores consistently. Sometimes I can run Prime95 Blend stable for 12 hours without issue. But If i leave my computer idle over night and then attempt to test it will often generate rounding errors within minutes. This lead me to believe there may be a power saving state or idle feature that is screwing with the RAM. Subseqently I've been trying to disable C6 states, power down modes etc.


So far I have attempted the following fixes without success;

+Upgraded BIOS.

+Reinstalled Windows.

+Completely replaced the RAM.

+Reseasted the CPU 3 times.

+tested the PSU.

+Switched the SSD.

+Tried disabling power saving features.

+Changed windows power options to AMD balanced.

+Reset CMOS numerous times.


Important clarification, the CPU is not overclocked and never has been. I have tried multiple configurations of XMP profiles and all of them seem to have issues, the range being about 3000mhz-3466mhz. Timings are 16-18-18-36.


Any help would be sorely appreciated because after several months of attempting to diagnose the issue I am completely stuck.