Display randomly turns off, CPU fan sometimes wont spin at startup.

[phillpower2]

You definitely need a new PSU so if you are definitely going to upgrade the GPU for something so high end I would suggest that you get more than what you need for the best price, a Gold efficiency rated Corsair, EVGA or Seasonic that is covered by a ten year warranty.

Just a fyi, your present PSU is rated as Tier D • Recommended only for very cheap, iGPU systems on the PSU tier list here ( low priority units - minor issues or lack of info )

[Athenallus]

Well thanks for all the help and advice. I shall get a new PSU gold with watts to spare. I’ll close the thread.

[phillpower2]

You are welcome and thanks for letting us know that you no longer required assistance (y)