Specs:List all of your specs including the PSU, also post temps (idle/gaming). Use AMD Ryzen Master for the most accurate temps for your CPU.
https://www.amd.com/en/technologies/ryzen-master
When you overclocked your memory did you test it to make sure it was stable? Going from 2400 to 3000 is quite the overclock and may not be 100% stable.
MemTest86 - Official Site of the x86 Memory Testing Tool
MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB.www.memtest86.com