New Ram for my 5800X

Kirby Wurm · 19 Jan 2022 at 19:53

Guest2 said:
Run MemTest 2.5. Same goes to @Kirby Wurm

Monitor it for a few mins and if there are no errors, leave it overnight so there something like 500% coverage

Thanks for the timings/tip, I'll try that tonight.

Kirby Wurm · 23 Jan 2022 at 10:38

Guest2 said:
It should look something like this. I found dropping voltage in BIOS from 1.50 to 1.49 has helped a lot.

I managed to get those exact timings working seemingly perfectly. It even boots and runs benchmarks without GDM enabled but there are some telltale signs that it wouldn't be 100% stable. Even without the performance is improved over my previous timings, many thanks!

Guest2 · 23 Jan 2022 at 14:12

Kirby Wurm said:
I managed to get those exact timings working seemingly perfectly. It even boots and runs benchmarks without GDM enabled but there are some telltale signs that it wouldn't be 100% stable. Even without the performance is improved over my previous timings, many thanks!

Good stuff. I can turn GDM off and tweak a few voltages but even then its not fully stable. The quickest way to uncover problems i've found is with TestMem5.
I'm still pondering more voltage and ohm tweaks to turn GDM off but is it really worth it for the hassle to get maybe 1ns faster in AIDA64 latency. Doubtful

When MSI release an updated working BIOS for the MEG Unify X570 though, i'll have a crack at 4000Mhz/2000 FCLK and maybe CL15. Of course it would be quicker (if you can find it and also not cheaper) to get some Gskill 4000C14

Kirby Wurm · 23 Jan 2022 at 19:58

Guest2 said:
I'm still pondering more voltage and ohm tweaks to turn GDM off but is it really worth it for the hassle to get maybe 1ns faster in AIDA64 latency. Doubtful

This is it, I compared GDM on with off in the MemBench included with DRAM calculator for Ryzen and the difference was so small I can't imagine the difference will be discernible in actual use.