What's this component marked 'U2 GND 500405' on GTX graphics card?

[jgorsk]

Can someone help me to identify what this blown component is please?
It's used on nvidia-geforce-gtx-titan-black graphics card, smd marking
is 'U2 GND 500405'

It's designator is Q3, it's next to the 2-pin white connector on top side of the card




It's looks like a current sensor or a transistor.

 

[BradtheRad]

Except if you were to circle it in a bold color, the component is too difficult to locate in your photograph.

Preferably you will add a close-up photo of your own damaged component.

 

[Mattylad]

This is it but it's not possible for us to read, you need a close up image of it.

 

[jgorsk]

The marking on the chip are in two lines.
1st line: C2 GND
2nd line: 500405

That's from a photo found on the net. There is a hole in that chip on my card so the markings are gone.

https://obrazki.elektroda.pl/5850353700_1447833299.jpg