Heh. I saw this for the first time yesterday and whaddayaknow? My G.Skill memory is not on the list and that is probably why it won't even boot with the XMP profile selected.
My Z390 FTW (bios v1.08) with i9-9900K o/c to about 5.2 GHz (turbo, goes back to 4.9 GHz on all cores under longer full load) is currently running it at the default of 2133 MHz instead.
The memory I have is a pair of F4-3600C19-16GSXKB 16GB DDR4 DIMMs. (https://www.newegg.com/g-skill-32gb-288-pin-ddr4-sdram/p/N82E16820232741?Item=N82E16820232741
Data from HWInfo:
The XMP profile:
Module VDD Voltage Level: 1.35 V
Minimum SDRAM Cycle Time (tCKAVGmin): 0.55500 ns
CAS# Latencies Supported: 19
Minimum CAS# Latency Time (tAAmin): 10.454 ns
Minimum RAS# to CAS# Delay (tRCDmin): 10.899 ns
Minimum Row Precharge Time (tRPmin): 10.899 ns
Minimum Active to Precharge Time (tRASmin): 22.125 ns
Supported Module Timing at 1800.0 MHz: 19-20-20-40
Supported Module Timing at 1733.3 MHz: 19-19-19-39
The rest of the supported (i.e. tested?) settings are:
Supported Module Timing at 1066.7 MHz: 15-15-15-36
Supported Module Timing at 933.3 MHz: 13-13-13-31
Supported Module Timing at 800.0 MHz: 11-11-11-27
Supported Module Timing at 666.7 MHz: 10-10-10-22
It is currently running at 1.2v and 1066.7 MHz clock settings above (15-15-15-36 timings) which appear to be in-spec.
It seems that the MoBo wants a CAS of 14 for 3200 MHz memory and 16-17 for 3600 MHz based on the memory compatibility page referenced above (https://www.evga.com/support/motherboard/
My question is this: Can I put some timings into the BIOS manually and get the CPU/MoBo/Memory to work together appropriately at a higher speed, even if it isn't 3200 or 3600? Or should I cut bait and just get some properly spec'ed 3200 or 3600 memory and sell the memory I have?