I installed 128GB ECC Registered memory (16 x 8GB) in my HP Z820. But now I am getting an error on one of the memory socket at bootup: 942 - Memory Training Error (Dim 6, CPU 0) Code 3014.
I removed the memory stick, blew some canned air on socket, and reseated it, but I get the same error.
I don't think it is the memory itself, because I moved the memory stick to another slot and it still says there is an error on the same Dim socket 6.
Windows 7 reports 128GB RAM and seems to run fine. I ran the HP memory test from the motherboard BIOS and it passed. I also ran Memtest86 for 48 hours and it also reported no errors.
I think the memory is probably ok, but I am not sure what would trigger the error. There was a 4GB memory stick in Dim socket 6 before, and it never complained.
My best guess: could an 8GB stick be using more of the connections in the Dim socket than a 4GB stick and one of those pins is faulty?