Xbox One X 3.3v Short

[grumpydoc]

I've also come across a component labelled FB2 which looks a little damaged, does anybody know what this is?

SMD ferrite bead

[ajp8868]

Thank you. Looks like these should have some resistance?

[grumpydoc]

Assuming that it is a ferrite bead it should be low resistance

There's some info including a diagram showing how they are constructed here - I assume it is the same sort of thing.

https://www.viking.com.tw/en/category/EMI-Bead-CBM-Series/Inductor-CBM.html

[ajp8868]

It would make sense, looks like one and is labelled FB

Not had chance to look at the Xbox tonight but I'm going to focus on trying to trace the path from the MP2853 to the CPU as it seems to me that if that heats up first it must be shorting close to that. The four pins (VOSEN1, VORTN1, and 2) are all shorted to ground but the rest of the pins are fine.

So is this chip only heating up because of the large ground pad or could it be shorted internally?

[ajp8868]

I think I may be at a loss with this board, both VORSEN pins on MP2853 as well the VDD33 input rail are shorted to ground.

The only things warming up are the CPU area, and MP2853 and nothing gets particularly hot (not even enough to evaporate alcohol quick enough to notice)

Can't seem to remove anything, so I'd probably need a preheater.

Anybody have any more ideas before it goes in the bin?

[ajp8868]

Does anybody know if it's possible to separate the sections of the motherboard by removing a couple of components?