Review on 💡 G.SKILL Trident Z RGB Series 16 GB (8 GB x 2) DDR4 3866 MHz PC4-30900 CL18 Dual Channel Memory Kit - Black with Full Length RGB LED Light bar - F4-3866C18D-16GTZR by Adam Tomasz ᠌

Plugged into Asrock X570 Phantom Gaming X with 5900X, all ates are up-to-date, slots are selected according to the instructions. Motherboard "game-racing", a recent flagship. With the parameters declared in the XMP profile, the memory starts up, but: 1. The voltage in the profile is different from that indicated on the market, the bars require 1.4v and not 1.2v. 2. With these parameters, the memory is unstable: it does not pass the stress test in AIDA64, the system is overloaded during operation. Resetting the frequency to 3866 MHz allows you to achieve stability at a voltage slightly less than 1.4v. 3. Stable operation of the memory at 4000 MHz and a safe voltage was not achieved. Tested up to 1.55v but long stress test always fails. This difference in frequency comes out to about 1 Gb / s at all speeds. On Zen 3, setting the Infinity Fabric frequency equal to the memory frequency greatly increased the speed of writing to memory (from ~49000 Mb/s to ~56000 Mb/s for a frequency of 3866 MHz), reading and copying change at the level of error. For DDR4 in Dual Channel, the speed characteristics are very good, even taking into account the problematic operation at 4000 MHz. The backlight is beautiful, it is configured both separately and in sync with the motherboard (if the board supports it and this is important to you).