Pc doesnt post after plugging ssd

[bcarild]

Pc first got into bios no problem. As i had no instance to boot from, i plugged in an ssd from an older computer. After this, the pc does not even post. Even after removing the ssd. I’ve stripped it down to only motherboard, cpu and ram, but it still only turns on for a second before it turns off again. Nothing i do seems to work. I’ve removed and reapplied the cmos battery multiple times, stripped down and rebuilt the whole pc to no avail. Ive also flashbacked the bios using a usb drive. 
3060 ventus 2x

ryzen 7 5800x

deepcool pf700

asus tuf 550 pro

[UnusualDevices]

any debug lights?

system cant boot without gpu as 5800x lacks igpu

[bcarild]

14 hours ago, UnusualDevices said:

any debug lights?

system cant boot without gpu as 5800x lacks igpu

It doesnt really try to boot, with or without gpu. It doesnt come to the point where it gives any debug lights before it shuts off again

[UnusualDevices]

ok I suspect psu actually.

 

get a gold one they are made with much better components