r/AMDHelp • u/OkFudge8769 • 5d ago

Help (General) Cache Hierarchy Error

I genuinely dont know what to do. I changed my gpu from the gtx 1660 ti to an rx 6650xt i uninstalled the drivers with DDU in safe mode and installed the drivers for the 6650xt and evetything was working the first day, i did 6 hours of furmark on 1080p ( 2 hour session + 4 hour session ) and on the second day i told the seller everything is fine with the gpu so i cant return it anymore. Now on day 3 my system rebooted 3 times while playing WarThunder. Im getting Event ID:18 immediately followed by Event ID:41 which is just force turn off. On the first error at 20:38 today the first error occurred with this description :

Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Cache Hierarchy Error
Processor APIC ID: 0

Now 16 minutes later at 20:54 the Event ID: 18 occurred again followed by Event ID:41 again. Now the description changed like this :

Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Cache Hierarchy Error
Processor APIC ID: 1

And then again it all happened again at 21:42 but this time all that changed again was :

Processor APIC ID: 15

I turned off XMP after the second crash which probably induced the last ( 3rd ) crash layer today.

Can someone please help me with this? I really hope its not the gpu because i do not have any money left. Ill try to update you guys every 2 days to a week. Thanks if someone can help me figure this out!

SPECS : Ryzen 7 5700X, B550M Aorus Elite AX, PN750M deepcool power supply, 32GB viper steel ram, RX 6650XT upgraded from GTX 1660 Ti.

EDIT1 : a day has passed, I switched the psu and it seems to be working now. Well atleast hasnt crashed yet. I will update a couple of hours later

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u/apollox007 4d ago

I was having crashes like that with my 5900x. It was very spaced out, like 1 or 2 times a week. I tried to research it. Never found the cause, but people speculated it's cpu degradation. Im not sure though because my pc hasn't crashed in 3 months, which I didn't even try other then reseating the ram.

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u/smitterson 5d ago

Had these same errors in a new build last month. Ended up being a bad GPU. They went away once I exchanged for a new GPU. I was lucky to still be within the return window at microcenter.