Interesting, how can you have 1150 MHz for ram but only be running 3685.9 MHz uncore? On my R2E, at that ram speed the lowest uncore speed available is 46XX MHz. Does the R3E have lower uncore multiplier selection or what?

It's nice that your board will run QPI data link rate at ~8300 MT/s, my R2E will not post with anything above ~8000 MT/s, so I have to use slow mode from that point which is disappointing. At 240 BCLK our SPI32M runs are within 3 seconds of each other so with slow mode the performance is essentially identical (we have different ram timings which may account for it).