RTX 5090FE Molten 12VHPWR

I guess it was a matter of time. I lucked out on 5090FE – and my luck has just run out.

I have just upgraded from 4090FE to 5090FE. My PSU is Asus Loki SFX-L. The cable used was this one: https://www.moddiy.com/products/ATX-3.0-PCIe-5.0-600W-12VHPWR-16-Pin-to-16-Pin-PCIE-Gen-5-Power-Cable.html

I am not distant from the PC-building world and know what I'm doing. The cable was securely fastened and clicked on both sides (GPU and PSU).

I noticed the burning smell playing Battlefield 5. The power draw was 500-520W. Instantly turned off my PC – and see for yourself…

1. The cable was securely fastened and clicked.
2. The PSU and cable haven't changed from 4090FE (which was used for 2 years). Here is the previous build: https://pcpartpicker.com/b/RdMv6h
3. Noticed a melting smell, turned off the PC – and just see the photos. The problem seems to have originated from the PSU side.
4. Loki's 12VHPWR pins are MUCH thinner than in the 12VHPWR slot on 5090FE.
5. Current build: https://pcpartpicker.com/b/VRfPxr

I dunno what to do really. I will try to submit warranty claims to Nvidia and Asus. But I'm afraid I will simply be shut down on the "3rd party cable" part. Fuck, man