Question Weird boot issue

[Foga]

Hey,

I upgraded my R5 2600 Asus B450 prime combo to a R9 3900x Msi x570-a pro combo 2 days ago. The system worked just fine. A couple hours ago I went away for an hour and the pc seemed to have died in the meantime. When I tried booting it the system fans would spin for a split second and that was it. So I started troubleshooting and found out the PC booted without the CPU power cable plugged in, I then tried with the R5 2600 in the new motherboard and had the same issue. So it can't be the cpu. Then I tried the old motherboard again with the old cpu and that booted fine so it can't be the power supply. So it has to be a dead motherboard right? Anyone know if it can possibly be something else?

 

[Lutfij]

Welcome to the forums, newcomer!

Did you reinstall the OS after you made the parts swap? We're going to need a little more info. Please parse the specs to your build in full, including the make and model of the PSU and it's age.

 

[Foga]

Welcome to the forums, newcomer!

Did you reinstall the OS after you made the parts swap? We're going to need a little more info. Please parse the specs to your build in full, including the make and model of the PSU and it's age.

Hey,

Full specs:
Ryzen 5 2600 upgraded to Ryzen 9 3900x
Asus prime b450 plus upgraded to MSI x570-a pro
Msi armor rtx 2070
Corsair rm650x
32gb corsair vengeance rgb @4x3000mghz
nzxt s340
500gb 970 evo plus nvme m.2
250gb samsung ssd
1tb seagate hdd


Old system was built in Dec 2018 with all new parts
The upgrades happend 3 days ago and the system was running fine for 2 days untill yesterday.
I did not reinstall the os.

 

[Foga]

Here is a YouTube video https://youtube.com/shorts/hxGcuH-XmSw?feature=share