October 11, 2025Oct 11 DRAM voltage 1.9V set, SoC 1.15V. Experimented with up to 2V set but became more and more unstable.
October 11, 2025Oct 11 Does the board have a separate VTT adjustment? I believe this might be your issue with the high vdimm.
October 11, 2025Oct 11 2 hours ago, I.nfraR.ed said:Does the board have a separate VTT adjustment? I believe this might be your issue with the high vdimm.It has, tried 0.92V VTT, made it less stable... Did not tinker with it any more. But likely the instability was due too low RFC (100ns). After raising it, stability was way better. Maybe now higher VDIMM & appropriate VTT might give some timings another boost.
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