2 DOA Componets

[TechFatality]

Now im not sure if this is the right place but here goes

 

I just got new mobo ram and cpu installed it and got no post no big deal did the usual checked cables reseat ram everything no post all fans spin and ram lit up but no post

 

so I tried 1 stick at a time of new ram no post tried old ram no post tried single stick at a time of old ram to test dimm slots posted with one but not with 2 so I took everything off motherboard and re did everything still no post

 

Then I put back old mobo tried new ram got no post then tried 1 stick at a time got it to post with 1 but  not the other  then put old ram in perfect post right into windows running

 

So I have assumed that I got a faulty mobo and a bad ram stick but the odds of that just sound crazy

 

I reseated ram multiple times and tried 1 stick at a time reseated gpu lots of time tried with and with ssd to try to get to bios 

Made sure bios was updated and the one time new mobo did post it showed that it was current upto date bios 

 

Old parts 

Cpu-5700g

Mobo-Asus prime b450m-aii

Ram-32gb 3200mhz cl22 teamgroup

Storage-WD 1Tb 750 nvme ssd 

650 evga 80+bronze 

New parts 

CPU-5700x( I sold my 5700 to brother for a non gpu build)

MOBO-Gigabyte aorus b550 elite rev 1.2

RAM- Kingston fury rgb  3200mhz cl16 

 

If more info is needed let me know I tried to be thurough 

I already started RMA process but was curious if I did everything I could to diagnose or if I jumped gun sending back for replacement