There are a few reasons why your PlayStation 4 may be beeping but not turning on. One reason could be that the power cord is not connected to the console. If you have trouble turning on your PlayStation 4, it might be helpful to connect the power cord to the console and try again. Another reason could be that there is something wrong with the power supply. If you have trouble turning on your PlayStation 4, it might be helpful to connect the power cord to the console and try again.