Question RAM speed issue

[paul5000]

Hi, I recently upgraded my mobo, RAM and processor. My RAM is 2400, but my Bios says 2133. It's set to auto-detect. If I try to manually select 2400, my system won't boot.

Happy to post whatever info is needed to figure this out. Thanks for any help!

 

[alexoiu]

What board and CPU?

 

[paul5000]

ASRock B450M
Ryzen 5 2600
RAM is GSkill DDR4 2400 8gb x2
Windows 10 on SSD - 850 Evo 256gb

 

[alexoiu]

Not sure what's wrong. An option would be running RAMs at default speed. No noticeable difference in performance.