A:AnswerWere you playing Minecraft Java or Minecraft 10. Either way both versions should run extremely well and Fortnite just a good. Are you using the monitor connections that are on the GPU? Even on epic settings it should load and run Fortnite. I would reach out to the HP Technical Support team for assistance.
A:AnswerYes I do believe so,there is one HDTV plug in that works and also a DVI and I have used both and haven't had any problems..there is Xtra HDTV plug-in s on this PC but they are not hooked up inside PC so you really only have one HDTV plug-in to use and then the DVI.
A:AnswerYou can upgrade the power supply in fact it is recommended you do as 1080 requires 600 watts minimum not 500 if you do the 1070 the 500watts will be just fine but 1080 draws way more power than a 500 watt can supply and you'll end up burning out your supply within weeks. 600 or above just be sure it matches the PSU where the supply sits in the rig.