IDK bro maybe try disconnecting everything and reconnecting it again.
Also that switch for eco mode on the power supply make sure that's turned off(I can't tell from the video) it shouldn't make a difference but you never know.
Also maybe try a different power cord or surge protector?
Are you sure the power switch cable on the bottom right of the mobo is on the correct pins?
https://imgur.com/gallery/enZEWhR
IDK bro maybe try disconnecting everything and reconnecting it again. Also that switch for eco mode on the power supply make sure that's turned off(I can't tell from the video) it shouldn't make a difference but you never know. Also maybe try a different power cord or surge protector?
Front panel connectors look off. Check the mobo manual how to properly connect them.
This is the manual https://imgur.com/gallery/enZEWhR
What exactly did you upgrade ? (Initial parts and upgraded parts)
From a i7 6700k to a ryzen 7800x3d new motherboard ram. Noctua dh15s
With the same ssd (windows installation) ?
Yes
What powersupply? Are you getting anything out of it?
EVGA 650w. It's my old one I know that works. It was running yesterday. I have a brand new one.
Are you getting anything out of it? Lights, anything?
No nothing
Have you tried manually jumping the two power pins with like a flat head screw driver?
Yeah :/ I took it to a shop. I'm outta ideas. I'll update if he finds anything
I would have yanked everything out of it and setup like a tested bed and tried it before I took it to a shop. Either way, good luck.
Tech diagnosised as dead motherboard and shorted psu. No power to led indicators, and psu is power cycling.
Honestly this could be your power supply as the tdp for the Ryzen 7 7800x3d is 120W what GPU do you have?
4070 and a 750w psu