Computer wont start after replacing my GPU

jonr97

Reputable
Sep 11, 2015
7
0
4,510
Hi everyone, I was browsing this website to find a solution to my problem and I have not done so yet, so I thought it would be good to ask myself. So, long story short, I just put in a new GPU in my PC but as soon as i tried to turn it on, there was a yellow spark in my power supply so i quickly unplugged everything and checked it out. No smoke nor burning smell and i waited a couple hours then tried turning it on again. The computer will not start at all no fans and no lights. I have a 400W power supply ATX SL-F4000. I tried to put in a geforce GTX 750. I read that it can handle it so i dont know why this is happening. Any help would be appriciated. Thank you!