GPU not displaying

[Telchines]

Hello, so this morning I was playing a game of league of legends and my computer just randomly turned off and tried to restart but then couldn't. I have been testing some things and I have found out it is a problem with my gpu but I can't figure out why it isn't working. When I turn on the computer the GPU light is coming on but it is not showing any display When I try and start the computer it stays on for like 20 seconds then turns on and off until unplug it. Last night I was at a LAN party so my computer was moving around but I used it this morning so I don't think it is from that. Sorry this is worded horribly. Does anyone have any ideas on how to fix this?

My computer specs are in my sig if you need them 

[Demokrit]

Sounds dumb but have you tried plugging it out and in again ? 

[Telchines]

Sounds dumb but have you tried plugging it out and in again ? 

Yeah I have took apart my whole computer and tried to see if it just was something unplugged or lose from moving it but still doesn't work

[HPWebcamAble]

Try using integrated graphics

 

Try unplugging the computer, pressing the power button for a second, then plugging it back it and trying it

 

Try clearing the CMOS

[Telchines]

Try using integrated graphics

 

Try unplugging the computer, pressing the power button for a second, then plugging it back it and trying it

 

Try clearing the CMOS

I ended up switching it to a different pci-e slot and it worked. I could have broke it from moving it Thanks for replying anyway