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Z690 Dark Memory Initial Stability Tuning 8000 MT/s with 48GB DDR5 Kit



The 24GB A-die modules require looser timings and lower voltage on both the Z690 Dark and Z790 Apex. If you have been successful with 8000+ memory overclocking using 16GB A-die modules, you will likely find your system will not boot using the same settings with the 24GB modules. CPU VDD2, VDDQ and VDIMM had to be lowered and SA voltage increased and tRFC increased on both of my systems.  Oddly enough, tCKE had to be lower to 6 (from a default value of 30) to get the 24GB modules stable on the Dark. The Apex uses 33 for tCKE.

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