Just got my notification and I’m thinking about buying the Patriot Viper 16gb DDR4 4400 kit(iPVS416G440C9K) with a 10900kf. I’m hoping they are compatible. I’m researching from my smart phone so it’s a bit of a pita. Thanks 😊

I can see supported RAM for older models but not the 500

Reality is, you won't know until you actually try it.

I thought I'd read somewhere, in the not too distant past, that EVGA had decided not to do QVL for motherboards now.

I could be wrong on that. I do know I haven't seen a thing that would indicate that one exists for their Z590 boards.

so far i have had bad luck with premium ram kits on this z590ftw.

I hope they publish the QVL for memory, I don't buy motherboards or memory without checking they have been tested together previously by one or both vendors. Hmm, if true and they don't, I may just skip the FTW mobo :(

It is a good option to ask the RAM mfg if they have tested / recommend any combination
 
EDIT
https://forums.evga.com/FindPost/3474976
 

EVGATech_LeeM
Starting with our Z590 boards, we do not plan to offer a memory QVL.  Nearly every kit we test within the rated specs pass (and most of the time, if it fails, it's because the RAM fails during testing).  Provided your intended kit falls within the spec range listed for the board, the only limitation is usually going to be your CPU memory controller. 

Gskill only had a couple of kits tested

I ordered some Crucial 3600 memory they said worked with the board. We'll find out when I build the rig this week.

Unfortunately my memory is not recognized correctly:
Memory = BLM2K16G44C19U4B
Specification = DDR4-4400, CL19-19-19-43
 
The mainboard only recognizes 4267 MHz instead of 4400 MHz (XMP 1):

 
In which way can I inform EVGA about this issue - via support ticket?

Udo_G
Unfortunately my memory is not recognized correctly:
Memory = BLM2K16G44C19U4B
Specification = DDR4-4400, CL19-19-19-43
 
The mainboard only recognizes 4267 MHz instead of 4400 MHz (XMP 1):
 
In which way can I inform EVGA about this issue - via support ticket?

Yes, I think a support ticket would be the best way to go.