Good ram to get?

[Rlmva]

I just got some corsair vengence lpx 2666mhz to put in my case so they don't interfere with my fan anymore, but my mobo keeps saying that its only 2133, and when I "overclock" it to its advertised speed, it messes with the cas latency. I'm not confident enough to go messing around with that stuff. I also want to get 3200mhz ram. I'd like to get corsair ram but just a higher speed, but I don't know if it would still register as 2133? I have a asrock b450m hdv r4.0 if that helps.

[Guest]

Turn on XMP, it should work fine at 2666.

[Shimejii]

When you install ram Most will run at the default speed of 2133, once you enable XMP it puts it to the rated speed.