Question MSI X570S Carbon MAX Wifi motherboard not powering up

[Deputy]

What the title says. I tried different wiring and a different power supply that I know works (I was using the Corsair HX1200) and still nothing. The pilot light on the video card lights up, but nothing else does. I checked all the connections 10 times over and everything is right. The pilot on the power supply (EVGA 850G5) I'm using now turns on, but no power to the motherboard. I changed motherboard cables but that didn't help either. Pretty frustrating as I just built to other comps using the same tower but lower level MSI motherboards and they work great. Any suggestions or advice would be greatly appreciated.

 

[lvt]

Are you sure that the two CPU connectors (4pin + 8pin) have been properly connected?

 

[Deputy]

Are you sure that the two CPU connectors (4pin + 8pin) have been properly connected?

Yep...all connected properly. But I'll check again. 😉

 

[Deputy]

Nope, I checked. All are connected correctly.

 

[lvt]

Nope, I checked. All are connected correctly.

I wonder whether all the power cables work properly (thing that only an ATX power tester could confirm).

 

[Deputy]

I wonder whether all the power cables work properly (thing that only an ATX power tester could confirm).

EXCELLENT SUGGESTION!!! I just ordered TWO ATX Power tester units from Amazon. Thanks for that idea!!!

 

[rolli59]

You have tried two PSU´s and at least one of them being a known working one? If so most likely you have a DOA board which does happen.

 

[drivinfast247]

What the title says. I tried different wiring and a different power supply that I know works (I was using the Corsair HX1200) and still nothing. The pilot light on the video card lights up, but nothing else does. I checked all the connections 10 times over and everything is right. The pilot on the power supply (EVGA 850G5) I'm using now turns on, but no power to the motherboard. I changed motherboard cables but that didn't help either. Pretty frustrating as I just built to other comps using the same tower but lower level MSI motherboards and they work great. Any suggestions or advice would be greatly appreciated.

This is a fully built PC with a CPU installed, correct?

You used ONLY the power cables that came with the PSU?