Corsair Memory on X370 Gaming K4

Has anyone had any luck getting Corsair Vengeance LPX 3,000 MHz 16 GB memory kits to run at greater than 2,400 MT/s? on the X370 Gaming K4 board?  I have installed EFI 1.70...

Sorry about that...

mgilbert wrote: Sorry about that... CMK16GX4M2B3000C15

The 3000 kit is not listed in your board's Memory QVL, no doubt due to Ryzen not supporting a 3000 speed memory divider. I see a similar model kit (4 x 8GB) at 2666, so your memory should run at that speed. If that works, try 2933.

I would also skip the XMP profile, or try it but set the memory speed manually. Also, the Ryzen memory controller seems to only want to work at a Command Rate of 1T, so try setting that manually, since Auto will probably give you 2T.

twf85 wrote: parsec wrote: I would also skip the XMP profile, or try it but set the memory speed manually. Also, the Ryzen memory controller seems to only want to work at a Command Rate of 1T, so try setting that manually, since Auto will probably give you 2T. Where in the BIOS would I adjust this setting? I've been scouring through it and I can't seem to find anything showing "1T", "2T", "Command Rate", or "CR". I updated to the latest stable BIOS (1.60) hoping to get my sticks up to 2933, but nothing seems to work. I know they're not on the QVL, but I was hoping the new BIOS would at least let me get to 2666. Still can't push beyond 2400. As always, your vast knowledge is very appreciated!

I want to say, with 99.99% certainty, that changing CR/N/T is not possible on Ryzen systems. Everything I've read doesn't mention it and even AMDs own Ryzen Master Utility doesn't.

Over time an ingenuous person may make a util to do so. But BUT that assumes there's a hidden BIOS option to even toggle. And so far I haven't read or heard that changing it is possible.