Jordan17

Every now and then my computer will disconnect from my monitor and won't reconnect. I can't do anything but force shut it down by holding the power button. When it turns back on everything doesn't work. Apps won't load and it won't connect to the internet properly. When I restart it I just loads and does nothing. But when I chose power off the screen will go black and the computer will stay on. Please help

And is there a way that I can max out the fans fully? I have no idea how to use the included fan controller with the case

I just built a PC using the P400S case and just bought 2 more 120mm fans. I installed them with the pre existing fans and noticed no change in temps. I have 3 intake and 1 exhaust. I am using an Rx 470 and an i5 6500 stock cooler. Please help