Is my graphics card dead? I accidentally short circuit my GPU by touch a live usb port to the back pcb of Gpu.

[Blazerex]

I have or mean had gtx 1060 3gb (zotac).

I was connecting my usb charging cable to cpu and my phone but accidentally touched it on the back PCB of Gpu ...my cpu cabinet is bit DIY XD ..So it was open...When i tried to restart my cpu ...everything works..but gpu wont start..not even the fan starts...I disassembled gpu to see any anyone physical damage but there was nothing sketchy...but i sure did saw a spark when i touched the usb c port to back plate...is my GPU dead..or is there any hope?

[WereCatf]

3 minutes ago, Blazerex said:

cpu

What you're calling the CPU is not the CPU. It's just the PC. The CPU is a much smaller component inside it.

3 minutes ago, Blazerex said:

but i sure did saw a spark when i touched the usb c port to back plate...is my GPU dead..or is there any hope?

The fact that you saw a spark means there was quite a bit of current flowing, so yes, your GPU is quite likely dead. Another possibility would be the PCIe - slot the GPU is in.

[tkitch]

I'm really curious how plugging in USB meant you had cables and phones inside of your case

 

Edit:  The outer shell on a USB C plug is basically ground, and shouldn't be carrying any power, regardless.

[flibberdipper]

2 minutes ago, tkitch said:

Edit:  The outer shell on a USB C plug is basically ground, and shouldn't be carrying any power, regardless.

Metal is metal though, and if contacted two different parts of the graphics card that had power the magic smoke will come out.

[tkitch]

Just now, flibberdipper said:

Metal is metal though, and if contacted two different parts of the graphics card that had power the magic smoke will come out.

if he's got a metal backplate on the GPU like he said, no exposed leads are present

[Moonzy]

4 minutes ago, tkitch said:

I'm really curious how plugging in USB meant you had cables and phones inside of your case

 

Edit:  The outer shell on a USB C plug is basically ground, and shouldn't be carrying any power, regardless.

short GPU VRM to GND = ded VRM

[flibberdipper]

Just now, tkitch said:

if he's got a metal backplate on the GPU like he said, no exposed leads are present

Ultimately a pretty moot point if they saw sparks. Somewhere along the chain, power was going where power should not have been going. They've got other problems if this is the case.

[WereCatf]

Just now, tkitch said:

if he's got a metal backplate on the GPU like he said, no exposed leads are present

Do note that OP doesn't use the correct terminology, like e.g. calling the entire PC the "CPU" -- it's entirely likely OP actually touched the PCB itself with the cable, thereby possibly shorting a positive trace to the ground on the USB-cable, and is just using incorrect terminology when describing the GPU as well.

[AMD A10-9600P]

That GPU is most likely dead if you saw a spark.

[Ripred]

Bummer... Do you have any other parts you can test? Another gpu to test the mobo and another Mobo to test gpu?

[ProximaOfZeal]

18 hours ago, Blazerex said:

...

Given that you touched the ground part of the usb plug to the card, it's fairly likely that you just blew one or more of the 12V rail fuses on your card, or you might've damaged the 12V power on the PCIe slot on the motherboard. Either way the only way to know for sure would be to locate these elements and test them with a multimeter - which does require some basic electronics knowledge and equipment.... Well, good luck...