[martiuk]

Is this with the EXPO profiles, or are they running at the JEDEC transfer rate?

[bravetraveler]

This is indeed with EXPO! There were great strides made with firmware revisions in the last year or so.

I do have to make a point to boost the supporting IMC/SOC voltages before enabling that, or I can get a bit wedged.

The profile voltages (and clocks/timings) for the sticks themselves work fine - just the board/CPU itself needs some care.