Update:
Now the third RMA.
Surprisingly, it's not a broken VRM this time, but rather a broken memory channel.
I reseated the DIMM, swapped the DIMM, swapped the CPU -> P1 IO Mem Channel stays broken.
Now the third RMA.
Surprisingly, it's not a broken VRM this time, but rather a broken memory channel.
I reseated the DIMM, swapped the DIMM, swapped the CPU -> P1 IO Mem Channel stays broken.