I got a ryzen 5 2600 and aorus b450 elite ,its working well and then i borrowed my brother ryzen 3 3300x since he's not using it, i used it for around 5 months, but now he want to use it back so i replace the cpu back to my ryzen 5 2600 but i couldn't get any post and the mobo stuck on dram led but when i use the ryzen 3 3300x on my motherboard the pc is working and when i tried ryzen 5 2600 on other mobo (same pc, i just replace the mobo with gigabyte b450m ds3h) the cpu worked too, so i don't know what's wrong, because the cpu and mobo is working, it just not working together