Windows 10: Cache Hierarchy Error, Event ID 18

My PC randomly turns off like if the power was cut and then reboots. It's completely random, sometimes it happens twice a week, sometimes once a month. The system doesn't need to be in high usage for this to happen, it even happens when only using Word. It happened nine times in the past 3 months, about half of these reboots happened when switching to sleep mode or shutting down.

After the error, the PC reboots longer than usual or there's a message saying
Cleaning up. Do not turn off your computer.

There's no bluescreen or error message, the only information is in the Event Viewer:
A fatal hardware error has occurred.
Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Cache Hierarchy Error
Processor APIC ID: 0 sometimes 1
The details view of this entry contains further information.

My BIOS settings are default and I built the PC myself. The only mistake I did is that I didn't screw the CPU stock cooler in an X shape. Could it be because of the unbalanced pressure on the CPU?

:)

 

Cache hierarchy error, PC reboot

Been reading every thread I can find on this.

Last night my PC rebooted itself and in event viewer it was "cache hierarchy error". This is the second time its done this, about 1 week apart. I was a couple hours into flying in the new flight sim when this occurred.

Right before this event I also have "Event 1101 Audit events have been dropped by the transport", and finally "Event 41 Kernel Power".

I have a dump in Windows\LiveKernelReports\WHEA for each shutdown. Today I tried to replicate it by flying in the new flight sim, pushing that GPU for 3 hours. And whilst it got hot, (GPU junction 90 degrees), there was no crash. I have no idea how to
replicate this.

This is a brand new PC, less than a month old, specs are: Ryzen 5 3600, Sapphire 5700xt Pulse, MSI B450 Gaming Pro Carbon Max Wifi, 32Gb GSkill Ripjaws V @ 3200Mhz (XMP), Corsair RM650. Drivers are 20.8.3, previous crash occurred on 20.8.2

No overclocking - EVERYTHING is stock except for switching XMP for RAM. Running latest Windows 10 64 bit - 2004.

Using BlueScreenView the problem lies with "ntoskrnl.exe"

Really would appreciate any help in identifying the issue and fixing.

_________________________________________

A fatal hardware error has occurred.

Reported by component: Processor Core

Error Source: Machine Check Exception

Error Type: Cache Hierarchy Error

Processor APIC ID: 4

 

Cache Hierarchy error.

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?

 

WHEA Logger Event ID 18

Computer Type: Desktop

GPU: EVGA GTX 1060 3GB

CPU: Ryzen 7 3700X

Motherboard: Gigabyte Aorus X570 Master

RAM: G.Skill Trident Z Neo 16GB x2

PSU: beQuiet Stragiht Power 11 750 Watt 80 Plus Gold

Case: Midtower with 4 Stock Fans

Operating System & Version: Windows 10 Version 2004

GPU Drivers: NVidia Control Center Version 432

Chipset Drivers: AMD Chipset Software 2.5.4.352

Hard Disk: SSD - WD_Black 1TB M2 Nvme

Background Applications: Happens only when the screen turns off after idle too long

Description of Original Problem: My newly built PC keeps on restarting whenever the screen turns off. It keeps doing this only when the screen output is turned off, and can take anywhere from a minute after, to days after for
it to decide to restart itself. Every time it restarts, event logger puts this out:

A fatal hardware error has occurred.

Reported by component: Processor Core

Error Source: Machine Check Exception

Error Type: Cache Hierarchy Error

Processor APIC ID: 1

or

A fatal hardware error has occurred.

Reported by component: Processor Core

Error Source: Machine Check Exception

Error Type: Cache Hierarchy Error

Processor APIC ID: 12

Troubleshooting: I have tried updating all drivers, changing bios power settings, and making sure ram, and gpu are working