Quote Originally Posted by Hell Hound View Post
It seems that 2933 with low cas might be limit for gen1 Zen,
Well I installed my new 16 GB memory kit. G.Skill F4-4266C19D-16GTZKW. I found out quickly how mediocre my IMC is. leaving all timings at auto. I was barely able to boot into 3300mhz with total instability with very high auto timings. I backed down to 3200mhz and was able to tighten timings to 14-13-13-13-30 CR T1. I had set timings at 13-13-13-30 CR T1 and it automatically changes the first value to 14. I did the appropriate SOC voltage and dram voltage stabilizing . I passed Ycrunch memory stresser. One thing with Y Crunch I have seen over and over again is if you pass the Fast Fourier subtest you wil pass all the others. I guess it is the most stressful on the memory controller of all the exams. I am looking forward to Zen 2 to solve this memory controller problem. Am I deluded to believe it will be a substantially better IMC or is there some rational reason for optimism??