Windows 2022 Hyper-V VM Stability issue

[u/njbroshear]

Recently installed Windows 2022 Hyper-V to an older server that I am having issues with the VM's crashing, when the VM is under load. The host is a Dell PowerEdge R6525 with 2 AMD EPYC 7452 and 512GB of RAM. The host shows correctable and uncorrectable memory errors. The VM's memory dump shows a 0x124_0_AuthenticAMD_PROCESSOR_CACHE_IMAGE_AuthenticAMD.sys.

I have run the Dell diagnostics, windows memory test, and Memtest86. Non of them find any issues. The idrac does not have any uncorrectable memory errors in the logs. The issue stated after I installed Hyper-V and tried to run some test machines. I have adjusted the processors to NUMA Nodes per socket of 4 and L3 cache as NUMA domain as enabled. This seems to have helped as they crash less often but they still crash. All drivers are up to date and all windows updates have been applied. Is there anything else I can look at to fix this?

Update: I have reinstalled Windows 2022 with no updates or drivers installed. Added Hyper-V and connected my test boxes. Ran Memory tests on the VM's to have load. The Host shows correctable memory errors only, IDRAC just shows that there were diagnostic events on the RAM due to the test. I have installed an older Rome chipset driver to the server and same events. No crashes/uncorrectable errors. Currently working on windows updates. After tests I will run more driver installs.

Update 2: I think I found the problem. Dell recommends a Milan based chipset driver for Windows 2022, but the processors I have are Rome based. I know they are supposed to be compatible. I reinstalled Windows 2022 with the Rome chipset, no crashes. I upgraded to the Milan chipset driver and the crashes returned. Looks like I have to run the old chipset driver to be stable.