I think 1.7vdd and 1.64vddq but these were overshot on purpose. With gdm on, 6400mt, can do cl26 1.47v. This is the pinnacle of ddr5, just waiting on a proper bios to take on 8000MT CL30.
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- Thread starter itsakjt
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I think 1.7vdd and 1.64vddq but these were overshot on purpose. With gdm on, 6400mt, can do cl26 1.47v. This is the pinnacle of ddr5, just waiting on a proper bios to take on 8000MT CL30.
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| System Name | Step_Sis Rodeo |
|---|---|
| Processor | AMD R9 9900X @ PBO |
| Motherboard | Asus Strix X670E -F |
| Cooling | Thermalright FW PRO 360, 3x TL-H12-X28-S, 3x TL-P12-S |
| Memory | 2x 16GB Lexar Ares @ 6400 30-36-36-68 1.55v |
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My sub par DDR5.. should have some new sticks shortly.. nice ones 
Thats quite a diffrence in voltage reqs for gdm off. Reaching stable cl26 was quite easy in my case. So far i always went with GDMOFF (along with lowest SCLs) but lately i see more opionions that ultimately gdmoff /scls is not that big latency reducer as was said erly on. Since I target best compromise between performance with low idle power and cooling requiments , I should check if hat voltage overhead might be better spent for better speed/cl instead,
Well 1.47 is for cl26, not cl24. Cl24 is around 1.59 to 1.6x. Gdm off bumps that requirement by maybe 0.4-0.5, so maybe 1.66vdd would be enough.
And Aida 64 latency and clam with large pages are correlated but seem to be affected by different timings/settings. Aida is very "superficial". So you should retest your understanding and stick to clam as the final determiner of settings.
GitHub - clamchowder/MicrobenchmarksGui: An attempt to make a more accessible microbenchmark
An attempt to make a more accessible microbenchmark - clamchowder/MicrobenchmarksGui
github.com
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Below is my Xeon w3175x@4.6Ghz on all cores. This is a daily speed for such a great chip on ambient water cooling. Mother board is a Dominus Extreme with (192GB) G.Skill B-Die running 3800cl14-14-14-36-320.
