Help tuning my 4000mhz ram on 5800x3d

[bucketface]

Just got a Gskill Trident neo 32gb 2x16 4000 18-22-22-42 kit, running on a 5800x3d with an Asus b550 gaming-f motherboard.

Aiming to run the kit at 3800 with fclk at 1900 and decent timings that are stable for gaming. So any advice on where to start and how to get there would be awesome. Pretty much a noob when it comes to memory oc.

 

[ir_cow]

I thought the X3D had a lower maximum FCLK. Is 4000 1:1 even possible?

 

[bucketface]

I thought the X3D had a lower maximum FCLK. Is 4000 1:1 even possible?

I'm not sure, was running with 1800 fabric clock on my old 16GB kit but figured I could try squeeze out a bit more performance if I could push it to 1900, and down clock the ram to 3800 with tighter timings. (On a side note, it was impossible to find an actual 3800 kit where I am)

 

[bucketface]

The dies are Hynix CJR, I've got my current pretty much stock xmp with zen timing voltage is 1.4v how does the dram calculator settings look? Is that a good start?