PC only "wants" to start every 5 minutes

[Held_Games]

My friend has a pc that only starts about every 5 minutes

So if he shut it down, he has to wait 5 minutes to start it again.

Well if he starts it before the 5 minut mark, the pc boots like normal but there is nothing showing up on screen.

 

Stuff I have tried:
It happens both with and without installed GPU
New CPU

New motherboard

New Ram

New PSU

Spec:
I5-9700K
Asus TUF B350M-PLUS GAMING
4X8GB DDR4 ram @2400Mhz
Some generic PSU (550W)
1 HDD generic
GTX 1060 (Without external power pins)

(Yes he knows that it isn't the most optimal setup, but that's not the point of this post)

[svmlegacy]

1 minute ago, Held_Games said:

My friend has a pc that only starts about every 5 minutes

So if he shut it down, he has to wait 5 minutes to start it again.

Well if he starts it before the 5 minut mark, the pc boots like normal but there is nothing showing up on screen.

 

Stuff I have tried:
It happens both with and without installed GPU
New CPU

New motherboard

New Ram

New PSU

Spec:
I5-9700K
Asus TUF B350M-PLUS GAMING
4X8GB DDR4 ram @2400Mhz
Some generic PSU (550W)
1 HDD generic
GTX 1060 (Without external power pins)

> Reinstall the OS, especially after that level of parts cannon.

[Held_Games]

Sorry for the late reply. We have tried a lot of stuff and waited for delivery.

 

What ended up working was a motherboard swap.
 

Thanks for the suggestion though