[SOLVED] CPU and motherboard work separately but not together

Nazea

Honorable
Oct 5, 2015
12
0
10,510
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
 
Solution
When you installed the 2600 did you reset the CMOS? You might need to pull the watch battery out of the motherboard to reset all settings when changing processors. Make sure the BIOS is up to date.