Core Ultra 5 125H machine hang on Test 9

[C.C]

I have a machine which CPU is Core Ultra 5 125H
The configuration is test under two DIMM inserted
(Tested 10.6/10.7/11.0 version)

There is a high probability that device hang on test 9 in 24hours(screen stop and cannot do any operation or input )
But if I run test 9 alone it won't hang even after 48 hours
I try on different memory modules , even different capacity the result is same
The modules test on other platform PASS even over 72 hours
Is it a issue on Core Ultra 5 125H during 2 DIMM testing or maybe just a faulty device ?

[David (PassMark)]

We've had no other reports of issues with the Core Ultra 5 125H CPU. But it is new, and with millions of CPUs being made there is the occasional failure.

My guess is that the "system" isn't stable. Which is just another way of saying something isn't working, but we don't know what exactly.

Does the lock up happen at around the same time with each run (e.g. always around the 12 hour mark, if the configuration is kept the same each time). As that would point to a software / BIOS firmware issue.

Do you have more than one example of this type of machine? If so, do they all have the same behaviour. As that would be a design flaw (or wrong BIOS default settings for voltages or timings).