Are you mixing different memory IC's?
Looking at the 4000Mhz kit it's obviously not Samsung b-die I would say. Doing a quick search. Hynix AFR.
I've usually not seen good stuff about Hynix except CJR/DJR ones. Your trying to mix too different kits I would say.
I think the system is trying to use the 3200Mhz kit settings and the 4000Mhz kit can't even try anything with it.
EDIT: ok I missed you had 2x of both. So not trying mixxed...
4x of 4000Mhz not working? Hynix AFR. I have no idea what kind of settings those like or compatibility generally. I've just not heard good words in general.
I know I had some trouble above 4000Mhz with my 3466Mhz rated kits. Though XMP still worked @ 4000Mhz and some small tweaks above.
I only had to modify RZQ values to a prefered setting and procODT. CAD_BUS might need tweak.
For sure you need to set FCLK & MEMCLK desynced beforehand you try 4000Mhz.
Gigabyte X570 AORUS XTREME, Ryzen 7 3800X 4.4Ghz, 4266/1900 MEM/FCLK, 18.104.22.168.76.tRFC 650 1T 1.600V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron E-die 16nm)
OLD: Biostar x470GT8 Ryzen 7 1700 @ ~4.0Ghz CPU, 3200Mhz RAM ...
Last edited by Nighthog; 02-01-2020 at 10:47 AM.