PSU Burnt Up The End Of A Cable, Throw It In Trash? (Pics Inside)

[dude77]

I plugged my GTX 1080ti into my seasonic 750 watt PSU like I had done several times before for mining. Upon starting the machine it caused the fans on the GPU to spin very fast. I shut it down and found that it was very difficult to remove the cable from the PSU. I eventually got it out and found that the ends of the cable were burnt apart. Here are some pics of the burnt end and one of the OK end which was in the GPU:









Should I toss the PSU in the trash? Is there any way to see if it's safe to use perhaps for a lower watt machine that only uses around 250 watts?

[dude77]

BTW I now have it working using an evga gq 750 so the gpu itself was not the problem

[Vann]

Are you sure you connected it to a VGA port on the PSU? If it's a faulty PSU it may be under warranty.

[leonix007]

The wires can't handle power and current flowing unto them.

http://www.tomshardware.com/answers/id-3037884/psu-8pin-connector-heat-melted.html


 You may try to use larger wires for mining purpose, and save your PSU.

[dude77]

The 1080ti pulls a max of 250W, the double ended GPU connectors are made for that.

I'm certain that it was plugged in correctly because I've been running that setup for about a month. It also works fine on the EVGA PSUs.

My question is should I throw away the PSU?

[Vann]

Is the power cable you used the same one that came with the PSU? PSU power cables are often not interchangeable as they may have different pinouts, even though the connectors fit. If you've used the same setup before and it was working, then it could be a faulty PSU. I would call the manufacturer to see if it's covered under warranty. I definitely wouldn't try using that PSU again.

[dude77]

Thanks, yes it was the right kind because the evga ones all have GQ on them and this was marked like the seasonic ones. I'll retire this PSU and see if it's under warranty.

[adaseb]

This happens from time to time. Its either because you plugged and unplugged that plug too many times, causing it to get loose.

Or it was connected at an angle.

This happens even to regular gamers and not miners. One reason why modular isn't the greatest.