5900X ASUS MOBO - ram works at all other frequencies but not 3800

Bluntwrapped · 20 Apr 2021 at 17:57

Does anyone have the same issue? Have a 4000 2x16GB Gskill bdie kit I’m playing with. Running AIDA64 to compare the results between changing timings and settings. No problem booting 2000 FCLK 4000 17-18-18-38. Will do all lower frequencies no problem (3200-3733, 3866-4066) but for some bizarre reason 3800 requires a bios reset.

I’m on the latest ASUS beta bios, maybe has something to do with it?

GregI · 20 Apr 2021 at 21:24

I heard sometimes 3800 can be a "black hole" on Asus and no way to get around it: https://www.reddit.com/r/Amd/comments/llet7x/the_zen3_1900_fclk_hole_issue/

I think I do remember someone vaguely saying you actually need to set lower soc, vddg etc voltages than you would normally have for 1900 but can't find it. If you have 2000 botting/semi stable then just work on that tbh.

Bluntwrapped · 21 Apr 2021 at 00:32

GregI said:
I heard sometimes 3800 can be a "black hole" on Asus and no way to get around it: https://www.reddit.com/r/Amd/comments/llet7x/the_zen3_1900_fclk_hole_issue/

I think I do remember someone vaguely saying you actually need to set lower soc, vddg etc voltages than you would normally have for 1900 but can't find it. If you have 2000 botting/semi stable then just work on that tbh.

Thanks for this. Found it really strange all others work but 1900 fails to boot. I’m getting a lot of whea errors at 2000 but haven’t tried adjusting any other voltages.

philo-sofa · 26 Apr 2021 at 16:06

Yeah I’ve had strange ‘frequency holes’ where my Zen 3 won’t play ball for some reason.