Sorry I meant the WD40 contact cleaner. either way that is what I have used but am still getting no display output. I decided to set up my old PC and put the graphics card in there to see if it works and it does. I also tested each display port and they are all working. so I moved it back to my new PC but still got nothing. I tried changing PCIe slot but that hasn't worked either. So the GPU clearly works and the PCIe slots aren't dead since it is still recognising the GPU, drivers and chipset have been updated but I am still getting nothing. at this point I have no idea why it wont displayNo. Use the correct tool or part for the job. WD40 leaves a residue and would probably cause a problem.
If you are going to work on electronics hardware, you need a can of contact cleaner.