Question about G.Skill Trident Z RGB

Yes I also use this motherboard and it works without problems

I have the ASUS ROG Maximus XI Formula and a Core i9-9900K and exactly this RAM (2X 16GB). After some back and forth and experimenting with various BIOS settings, the system runs stably. However, I only got the RAM to work with 2133MHz. Everything else (XMP profiles and also manual settings) did not run stably and some voltages were set very high (although I had lowered them manually in the BIOS!). I especially had problems with cold boots. Once the system booted, it usually ran stably. The BIOS offers an almost infinite number of settings and at some point I lost patience to run the RAM below the specified clock and simply left it at the standard 2133 MHz.

I have the asus maximus x hero Z370. With this board, I had problems with the PC not booting. I can't judge the Z390.