To correct Gary "VQPI (uncore to us)"

Yes, Vdimm and uclk are directly related and raising vqpi doesnt scale uclk, vdimm does. That is the secret to free performance, that is how I hit 25K and 18.9ns latency.

they can all be higher or lower than the other
true

Ill disclose the voltages I am running at on each board.