Question RAM speed issue

paul5000

Reputable
Feb 28, 2015
27
1
4,535
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!