I know that some mobos, this past year, have done slightly better with other ram types. They also agreed that 4,000 MHz binning is best, even if I drop it down to 3750, and that at 3750 it should easily take a CAS setting of 14, and likely allow for faster overall timings than their 3600MHz binned ram. It will likely, at that point, be sold with the 'X' at the end of its model number. They confirmed all my suspicions, saying that the new ram is not out yet simply because new mobo BIOS's have not yet been finalized, and that my ram will most definitely be compatible with any mobo & bios, including new ones for Ryzen3. Seeing as I could still return this ram, I queried G-Skill directly. I also read that the upcoming 'official' AMD ram will (supposedly) max out at 3800 GHz. It's also B-die, and I was afraid that G-Skill might soon run out of whatever stock they have left. You can usually run better timings by manually configuring your ram, anyway. This ram doesn't have the AMD 'x' designation, but that just means that it doesn't have 'official' XMP profiles.

The deal with RAM for Zen3 then? What's the latest scoop? Last I heard, 3600mhz DDR4 would fit the bill and can be 1:1 with the infinity fabric at 1900mhz ?As I wrote a while back, I've already purchased G-Skill 4,000 MHz / cas15 ram, as that should be the best-binned (hence most stable & durable at any speed) DDR4 that still has excellent CAS timing.

Vddp voltage control