The new AMD update is supposed to support up to DDR4 4000 memory and fix other memory issues. I just ordered a ASRock X370 Fatal1ty Professional and a AMD Ryzen 1700X CPU and am getting ready to order memory for the system. I was originally looking at DDR4 3200 but since performance is so highly linked to memory speed for this processor, I am looking at higher speed DIMMs. However there is no timeline on when the ASRock motherboards will get the BIOS update pushed out. If I do purchase say DDR4 3600, can it safely be underclocked to work with the AMD? And would that also hold true for the ASRock X370 Taichi motherboard? I have one of those with a Ryzen 1700 coming for my son's computer.
Yes, defo, I would say 3600mhz is probably going to be the new sweet spot for RyZen, currently 3200mhz is the sweet spot, and for now you should be able to run that kit at 3200mhz or 2933mhz until the bios release.
People who are beta testing the new bios update although are reporting it can support upto 4000mhz, cant get the ram upto those speeds with 4000mhz kits and above, but the bios is still beta.
We should all hopefully see the finished bios in a week or 2, especially with beta's floating about already, they are quite quick, board makers will then release another 1 or 2 bioses to tweak / improve on it further, and then we will probably see bioses slow down.
They say 3600mhz and up will bring RyZen single core performance in line with a 7700k single core performance, I have a 3200mhz G.Skill kit at the moment which im hoping to loosen the timings up a little on and get upto 3600mhz or there abouts, the new bios update is supposed to also allow for BLK overclocking too, I cant wait for it, I check my board manufacturers site everyday for an update or beta.