That also occasionally happened with Socket A boards without a four pin connector; I can remember twenty plus years ago where a guy mentioned this happened to his Epox 8K3A+. A slightly out of spec, slightly loose connection leads to resistance, which leads to heat, and the heat increases the resistance, then the contacts begin to burn and the resistance spirals out of control. About ten years ago, my mother's PC had a low level electrical burning smell coming from somewhere but I couldn't find it. When it quit working, I figured out that the power cord for the power supply was out of spec and had burned up, both the cord and the contacts for the PSU.

rasz_pl wrote on Today, 00:11:

Famous PCChips quality and design choices lived on in ECS 😀

The problem is insufficient carrying capacity of standard ATX connector, same thing happens to 5090 with that stupid new connector https://www.techpowerup.com/346572/nvidia-gef … 0-w-power-limit

I bet the PSU still works fine, but you will obviously need another ATX connector. Either new one with a set of crimp pins and a crimper, or a from sacrificed PSU and a set of heat shrink tube to splice it up nicely 😀

That's the sad condition of the atx connector

That's the back of the motherboard, ignore the general condition, I tried to unsolder the pins, but there was that burned pin which was ground I think?

That's the upper part of the motherboard

Ecs\pc cheaps quality strikes back huh?
I think the problem was just the loose connection between the psu pins and the motherboard? The motherboard is going to be trashed either way but I definitely want to save the psu, I opened and inside is all good, no bulging caps or anything sketchy.
Do you have any advice about how should I proceed? I need to buy a crimper, crimp pins and shrink tubes? What should I get precisely?
Thanks