I've got a faulty GTX 1070 Graphics card here with a blown SOT-23 casing IC. Looking at it you can se N51 and looking around on the board I can find another component like it with N51K.
I cannot however figure out what the component is? It looks like a transistor of sorts.
Thanks for your help so far.
I don't know why it failed, I purchased the card on a whim in the hope I might be able to repair it. Probing around the rest of the circuit I see no reason why it shouldn't work other than this, there are no other shorts.
Please see attached for an expanded area of the circuit.
I've probed the existing N51K IC and as you look at the picture: Right pin to left 1.5v forward, centre to left 1.5v forward so it would ring true as being some kind of transistor, left pin being the gate. Does fit the theory of it being a Si2305CDS as it matches the pinout and it being PNP
The center pin on the blown IC goes to the 100ohm resistor and that goes to pin 3 on the ON 702 IC. Having done a bit of searching it seems at first look that the 702 IC is a dual N-Channel mosfet 2N7002DW however probing it doesn't fit as pin 5 probes to pin 1, so either that's a short that shouldn't happen or not the correct IC.
I'll have a further probe around and see what else I can find.