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Thread: NEW!!! DRAM Calculator for Ryzen™ 1.6.2 (overclocking DRAM on AM4) + MEMbench 0.8 (DRAM bench) Reply to Thread

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  Topic Review (Newest First)
01-23-2020 12:45 PM
Quote: Originally Posted by marcelo19941 View Post
Thanks for the help guys, latency starting to get great.
1900mhz memory, 14-14-14, at 4800mhz
And only 63.5 ns latency?

Something is wrong. It should have been less then 62ns

Sent from my ONEPLUS A6003 using Tapatalk
01-23-2020 12:19 PM
Quote: Originally Posted by eliwankenobi View Post
What Memory kit is that?
Is a Trident Z neo 2x8Gb 3200mhz Cl14
01-23-2020 11:11 AM
Quote: Originally Posted by marcelo19941 View Post
Thanks for the help guys, latency starting to get great.
What Memory kit is that?
01-23-2020 04:05 AM
marcelo19941 Thanks for the help guys, latency starting to get great.
01-22-2020 08:28 PM
Quote: Originally Posted by DaNiJ3L View Post
8 x 16 GB Flare X 2400MHz Cl15 (Hynix AFR dual-rank)

Stock after resetting CMOS board tries to boot with RAM at 2400 and fails if I have all DIMMs in or only detects 6 DIMMs. I can lower it to 2133 and all 128 GB is detected

This looks to me like not enough power to drive them at 2400, hence only 6 sticks detected.

Anyway, I have some other tricks, don't use the calculator, don't use XMP, run all the secondaries AUTO, key in the primary manually, i.e. use the 2666 timing you had, 14,16,16,16,36, but run at 2400.

Must set procODT, cannot auto this. aaaaand high volts needed. no escape.

btw, found my 1.312v soc in post #4 http://forum.asrock.com/forum_posts....&PID=53419#top
01-22-2020 08:25 PM
Quote: Originally Posted by DaNiJ3L View Post
I'm having issues running RAM at frequency higher than 2133.
Configuration is:
X399 Taichi
8 x 16 GB Flare X 2400MHz Cl15 (Hynix AFR dual-rank)

What if you get it to post at 2133mhz then change it to 2400-2666mhz? Try 1.45v, high voltage on its own isn't dangerous it needs high frequency too.
01-22-2020 08:20 PM
Schmuckley If you want to find memory weaknesses, run Hyper-Pi 32m.

Get you some "Not Convergent in SQR" on the last loop.
01-22-2020 08:15 PM
Quote: Originally Posted by DaNiJ3L View Post
I have went through every procODT setting from 40-80.

Try procODT even higher and even lower, you in new teritory, not many people have 8 sticks,

again procODT is resistance in ohms, which affects voltage and current.

Morrtoo morrtoo volta !!!

be brave 1.5V Dram, 1.2v soc, some motivational info
https://www.tomshardware.com/reviews...en,5011-2.html = up to 1.3v ambient cooling.
time 3:39 shows 1.35v,

Motherboard makers won't provide this if it will kill the CPU instantly.
01-22-2020 07:57 PM
Quote: Originally Posted by DaNiJ3L View Post
I've tried 1.15 SoC and 1.4 for RAM ... still no luck.
I'm seeing ppl do 2933 or more with B-Die, but I guess I will have to settle for 2133 since I have AFR.
Hi DaNiJ3L,

I forgot to highlight a word yesterday "power usage/current needed more" since Dram is running constant voltage.

8 sticks will for sure eat a lot of power and current causing voltage drops, not seen at start up, but when loaded, i.e. actually memory usage high throughput and the split of a nanoseconds voltage drop due current pull is not readable by monitoring hardware/software, hence one other way to compensate is higher voltages,

Since you've invested so much, then consider DDR4 sold default at 1.5v, i.e. 4000mhz+++ examples

so, go figures..... that's why so many people says run 1.5v daily ok.

I've personally use 1.58v for a day or two, A-tuning reads 1.62v high, 3333mhz
I'm back down to 1.39v now, A-tuning reads 1.41v, running 3133mhz C16-17-17-17-36 of dual rank, which is difficult. soc 1.125v needed, at soc 1v won't post at all. Default soc support for my case is 2400mhz, running 3133mhz or 3333mhz is way over spec, hence way over volts. https://www.techtesters.eu/pic/AMDRYZEN71800X/209.png

also, I've run soc as high as 1.3V before too. They won't die if it's just a day or two once every 3 months.

but albeit, de javu or bad luck, I can't warranty you if damaged wa ka ka ka ka ka. All OC is self risk.
01-22-2020 02:15 PM
Quote: Originally Posted by 2600ryzen View Post
gdm disabled and 2t reduces random latency on my ram slightly and custom latency stays the same, if it's stable.

Also TrrdS/TrrdL can maybe be tweaked as low as 4, then tfaw might be able to do 16. They can also help improve other timings apperently so maybe Trcdrd can be lowered after you lower those timings.
Thank you for the help, these are the little nuances that are really hard to find through search so I really appreciate the advice.

I will give it a shot tonight!
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