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Guys, I have a question regarding the GPU, yesterday I moved my rig with 7 cards to the new location and assemble it again, but stupid me I somehow put the usb riser for the 7th card like this

https://i.imgur.com/xaRw3nll.jpg

The small port of usb riser was connected to the wrong port on MOBO, when the wide port of riser connect to nothing.

And then I boot the rig with nvOC, of course it only recognize 6 cards, I checked and saw what I did and I immediately shut down the rig and put the usb riser in the correct port. However from that time my rig can not recognize that specific GPU. I tried to:
- Unplug all others GPU and use only that GPU but the window or linux can not recognize it
- Install driver but it does not help too.
- I plug the HDMI cable from the monitor to the gpu, but it does not help.
- Plug the gpu to another working rig, but it does not help.

The GPU fan and led is still running as normal, there is no smell. But I wonder if I accidentally shorted my card? Sadly it seems the warranty will be voided if the card is fried or shorted.

I really appreciate your help.

The card is Galax 1080ti 11GB

Sorry for your lose friend, sorry for saying this but it was a stupid move.

I somehow did the same to my GPU card RX 570 Nitro+ it was working just fine but seems like power cables were installed in a wrong way now there's no HDMI output from the gpu.

Regarding your question if risers can damage GPU i am not sure but i think they can.

If you switched the riser to one that is working and the GPU won't work in another rig, then you most likely fried it. Always be very careful when plugging in risers, never do it in a hurry. When changing risers I turn off the PSU until I am sure they are connected correctly. There is a member here that does GPU repair work. You may want to contact him.

https://bitcointalk.org/index.php?topic=1746977.0

Thank you for the reply guys, I also believe 99% it was fried by my mistake, I will try to RMA tomorrow and hopefully they will accept it. At first I thought the usb 3.0 only handle the data transfer, whereas the power riser cable will handle the electricity, but I was so wrong.

it is supposed to only handle data  but plugged in wrong and pop.

Nice card you killed.

been there done that.


asus strix rx 480 8gb in my case.

here is your photo
https://i.imgur.com/xaRw3nll.jpg

The PCI-E 1x slot has 12v and 3.3v pinouts connected to it.

http://www.interfacebus.com/Design_PCI_Express_1x_PinOut.html

I use 6-pin risers which have a voltage regulator that will prevent spikes in current from damaging the card. I don't know if they would protect against a short however. I checked the outer pins on the USB cable that connects to the riser from the 1x PCI-E slot with a multiimeter. There was 3.3V coming from the motherboard.

I did this same stupid shit a month ago with an MSI R9 380.  Lights still worked on card but neither windows nor hiveos recognized it and no output to display.

I just decided to double check before I recycled it.  I installed in a win machine and it works.  Mining away at 21 mh just like before.