PS4 fried by mixing 4pin wires?

[YariLei]

So, I got a PS4 1216A with a motherboard that had a missing power socket (the 4 pin one that connects to PSU). I wanted to see if the motherboard had any other issues and soldered a modified 5pin connector in its place and with some spit and tape made a quick 4pin cable out of a 5pin one. Booted up to analyze further damage and then on to take it apart again. During that process some of the wires of my make-shift cable came loose and after reattaching them, the system is now completely dead. I may or may not have accidentally mixed the middle two wires when trying to get it back up and running but now there's no power at all coming up. Did I just fry the whole thing? Apparently the middle wires are GND and DATA1, but since GND is used to regulate the 5V pin, there should not have been any peaks through DATA1 line. Most likely just some <1V strain on the chips that limit the voltage to 5V. Or are there any fuses in play? What could have theoretically happened?