I'm hoping someone can offer some help with this issue. Basically I've just bought an ASUS B450 Strix F motherboard. A Ryzen 2600 and a 4 X 8GB Kit of ram from Crucial, this stuff to be exact https://uk.crucial.com/gbr/en/bls4k8g4d32aesck my problem is no matter what I do I can't seem to achieve any speed higher then 2800mhz. At last I I thought it could just be this kit or the fact that I'm using 4 dimms so I tried a kit of Corsair vengeance 3000mhz 2x8GB and an facing the same issues. This kit wont even boot though at its XMP/D.O.C.P setting where the Crucial did but just crashed when loading a game after a few seconds. I have tried both of these RAM kits on my X470 Prime Pro before I sold it and both ran at rated speeds without an issue. So I now believe it's the new motherboard or the Memory controller in the new CPU. I'm not very good when it comes to stuff like this though so could anyone point me in the right direction. I've tried upping voltages with the RAM upto 1.4v overclocking the CPU to 4.1GHZ changing timings with the Ryzen memory program. But no matter what if I select anything above 2800mhz on either kit it just doesn't want to know. 3 days I've been trying and I'm no further to a solution. The message I've had among others when it blue screens is (DRIVER IRQL NOT LESS OR EQUAL) Motherboard is also on the latest bios.