Failed test for CPU Error

[Sebastian6600]

Hi guys,
In my company, I'm testing several computers that are almost all of the same model (change only the CPU but the Motherboard and RAM are of the same manufacturer).
I launched on Saturday the test on 3 units and all of them failed at the same time with same type of error on CPU:




In my opinion is very strange this situation.I've launched again another software MemTest86+ V7 (installed on same USB sticks) and the test pass (24h):

What can be the issue? After this 2nd test I've launched again the MemTest86 with other USB sticks and again failed as the first try.

[Richard (PassMark)]

Are the errors all from Test 13?

If so, then your system may be susceptible to Hammer attack.

[David (PassMark)]

Row hammer issues are generally a design (or configuration) flaw. So no surprise they all failed.
MemTest86+ (with a plus) doesn't have a test for row hammer, so it misses these faults.

[Sebastian6600]

Very interesting information. Thanks a lot for both!