Have a Ryzen 1500x and bought DDR4 32GB 3600. I didn't expect to get them running at full speed but can't get them stable beyond 3333Mhz. The mobo does not support BLCK overclock. How can I improve memory stability to get it for least 3400? I've tried a few timings, often rounding up to even numbers but alas it *doesn't take. The Ryzen 1500x is undervolted running at 3625Mhz (multiplier.)
It's Hynix memory, dual ranked, and 16x16GB sticks.
*Can get into windows and do most things but for gaming it's hit or miss. I think it's -almost- stable but not there.
Updated your BIOS to one which contains AGESA 22.214.171.124? If no, do it. If yes, then those memory chips won't run at that speed on that motherboard. The best place to ask this question is on your motherboard manufacturer's forums.