Windows 10: PC will stay on, but restarts randomly while gaming with WHEA error logs

Recently, I've been experiencing random restarts while gaming specifically. No blue screen, my PC doesn't lose power, monitors just turn black and my PC reboots. I've researched endlessly to figure out what the exact problem is but everyone seems to have different answers and couldn't find a solution. It does seem however that people have pinpointed it to be either the CPU, PSU, or the MOBO. I've looked at the event viewer and I always get the same 2 errors when this happens. The things I've already tried, making sure windows 11 is up to date, updated GPU and chipset drivers, reseated my RAM a

:)

 

whea warning? cache hierarchy error

I just noticed a whea warning in my event log stating a hardware error was corrected and it was reported by a cpu core. the error type was a cache hierarchy error. i know OCing can cause some of these whea errors, and it seems most people just ignore them, but im just wondering if this one is anything to worry about. my processor is overclocked, but i can pass numerous stress tests and games for hours, without any issues or errors in the even log. i think the pc my have even been idle at the time this was reported , or i was gaming . But again usually there are no errors regardless of what the pc is doing.
anyway, i was just wondering if anyone had some info on this error since googling it comes up with a bunch of different whea errors and no real explanation other than ocing can cause them.

Computer is:
8700K stock, MTE on, 4700mhz auto clock
Asus Z370 Pro Gaming
16GB DDR 3000MHZ ( XMP ON)
Gtx 1080 Ti Aorus
Corsair 750 Rmi
SSD Crucial 525GB
HDD TOSHIBA 500GB
Windows 10 clean install 1709 Creator Fall Update ( 16299.15 build october 2017 ,before meltdown/spectre patch )
All settings in UEFI are stock,defaulted . Only XMP profile is on.

 

Computer randomly has black screen and restarts

Taco this could be software also. Before you get all crazy, do as Erocker suggested. Find out the error in the Event Viewer. Look for the faulting module and the error code itself. Also check the reliability monitor. At the bottom it will have "View all Error Reports". Post a screen of whats in there if anything.

This could be a simple as a bad driver install.

ALSO have you downloaded or installed anything lately? STAY OUT OF THE DAMN BIOS UNTIL WE KNOW THE ERROR! lol. I know you. Baby steps boy, baby steps.

 

PC Randomly Restarting after installing new Ram!

Tried your suggestions, but still had a restart! Also ran memtest overnight (13 hours according to memtest) and had no errors! Also ran Passmark Burn in test for a couple hours testing everything and had no errors or restart. Could fitting the new ram have triggered something to go bad like my mobo or psu?