Sounds liek you may have just knocked the GPU mate.
Try remove the graphics card altogether and then just replace it firmly in the slot.
If you have a Modular PSU you should also check you have not pulled some cables slightly out
Make sure they are all firmly in there slots on PSU and components.
Corsair 750D :: 750W DPS-G:: Asus x370 PRO :: R7 1800X ::16gb DDR4 :: GTX 1070::525gb SSD::Coolermaster 240MM AIO::
and during the process i thought i had to remove the gfx card which i could actually let be, but it is so big i didn't want to take the chance. The little thing which holds the gfx card in place didnt want to open so i stupidly used a screwdriver to do it and when it opened i smacked the screwdriver somewhere, but i have no clue where and if i actually hit something vital. Now after this whole operation my computer randomly shuts off and i get low fps in Old republic and my computer just shuts down after a few minutes. First time it randomly shut down i had to plug out the power for the pc and wait a while before i actually got any picture on the screen.
