Cache Hierarchy error.

worry · February 11, 2018

I have a 8700K (default bios settings) for a month now. I have only just noticed after scrolling through event manger that i have been getting these warnings only from 21.01 january:
A corrected hardware error has occurred.

Reported by component: Processor Core
Error Source: Corrected Machine Check
Error Type: Cache Hierarchy Error
Processor APIC ID: 0 (also sometimes happens for 6 or 8 aswell)

I havent seen any affects that might be caused from this like BSODS or freezing. All stable. Intel diagnostic tool passing. Memtest86 no errors. IHC memtest no errors. Either way should i be concerned of that errors from 21.01?

my pc: 8700K ( 4700MHZ is on auto by motherboard )
2x8GB DDR4 GSKILL 3000MHZ XMP ON
Corsair 750i
SSD Crucial 525GB MX300
HDD TOSHIBA 500GB
Asus Z370 Pro Gaming bios 215
Windows 10 Fall Creators Update 1709

I tried to reproduce issue by formatting disk and installing again Windows 10 but they dont appear again. From microsoft they said that this is hardware issue. So why i cant reproduce this?

faziten · February 12, 2018

Usualy WHEA-Loggers mean your overclock require more vcore.

I see you let your motherboard do the overclocking for you. Revert to stock values and if want to OC, do it manually testing at every mayer change you make with handbrake, OC3D test, AIDA 64, whatever you want. As a general rule, set AVX offset to -2 multipliers. If any of this sounds like too difficult or unknown, Google it.

You cant reproduce the scenario because IF its lack of Vcore, it could be triggered by transient loads, that are as random as it can get. Can happen at idle, can happen at full load, can happen anywhere in between.

Disable XMP on RAM and run JEDEC speeds. Best 2133 to discard any possible issue. use it for a couple of days OR until another WHEA logger happens. If it still happens you may have to RMA some parts, we'll see.