Dell XPS 9570 motherboard CPU voltage regulator magic smoke release

[TimSmall]

I have a Dell XPS 9570 laptop (~5 years old, Core i9), a few days ago one of the VRM mosfets had a really bad day.  Image attached...

I was running a compilation job on it at the time, and was out of the room.  Settings were at their default with respect to cooling etc. and it wasn't undervolted.  When I came back into the room, it was turned off, but still pretty warm.  Had I been in the room I may have been able to power it down earlier, but maybe not - difficult to tell how quickly it went.

I found the schematic online, and the package which let go was an OnSemi NCP302045 - "The NCP302045 integrates a MOSFET driver, high-side MOSFET and low-side MOSFET into a single package."  - one of the 4 in a row which makes up a 4 phase VRM for the CPU's VCOREB.  Helpfully, the 302045 includes over-temperature protection

Looking at the heat damage with reference to the 302045's pad/pin layout, it looks like this may have been a short to ground (so maybe a source-drain short on the low-side mosfet).  That may have stopped the CPU vcore getting whacked with 5v.

I'm pretty much assuming the degree of PCB heat damage is likely to have put this beyond repair, but just thought I'd get another opinion on that since the damaged area is right at the edge of the board.  A replacement board is about €300, so I'd probably be up for diving in on the off chance...