How To Setup The Raspberry PI 4 As A Desktop Computer

The Raspberry PI 4 is far more powerful than the original Raspberry PI and it is now suitable for use as a desktop computer.

This guide shows you how to connect all of the components together.

List Of Components

You will need:

  • Raspberry PI 4
  • SD Card – with an operating system installed
  • Power Supply
  • Keyboard
  • Mouse
  • Micro HDMI to HDMI cable
  • Monitor

This guide shows you the full list of components required to use a Raspberry Pi as a desktop computer

Insert The SD Card

Before you insert the SD card into your Raspberry PI you will need to make sure the SD card has an appropriate operating system installed to it.

You can follow this guide to install NOOBS to an SD Card which will allow you to get set up quickly and easily once your Raspberry PI is ready to go.

Insert SD Card Into A Raspberry PI

The easiest way to insert the SD card is to turn the Raspberry PI upside down and then insert the SD card as shown in the image above.

Insert The Raspberry PI 4 Into A Case

The Raspberry PI 4 can run perfectly well without a case but to keep it clean and to make it look nice you might want to use one.

Before attaching all of the cables you will need to insert the Raspberry PI into the case as shown below.

Raspberry PI In Case

Attach The Keyboard And Mouse

Keyboard and Mouse

You can either use a wired keyboard and mouse or a wireless keyboard and mouse.

If you are using a wired keyboard and mouse attach the keyboard to one of the 2 USB ports and the mouse to the other. Use the standard USB ports (the black sockets, not the blue ones as you will want to save these for other devices such as USB storage).

If you are using a wireless keyboard and mouse you will need to insert the bluetooth dongle into one of the black USB ports instead.

Connect the Raspberry PI to the monitor

The Raspberry PI 4 has 2 micro HDMI ports which means you can connect the Raspberry PI to 2 monitors.

You will either need a micro HDMI to HDMI converter as shown above or a single micro HDMI to HDMI cable.

If you are using a micro HDMI to HDMI converter connect it to the port closest to the power socket. It is marked as HDMI on the unit itself.

Now connect one end of a normal HDMI cable to the converter and the other end to the HDMI port on the monitor.

If you are using a micro HDMI to HDMI cable (ie not using a converter) then connect the micro HDMI end to the Raspberry PI 4 and the other end to the HDMI port on the monitor.

Connecting The Raspberry PI Power Supply

Raspberry PI Power

Connect the USB-C connector of the power supply to the Raspberry PI as shown in the image above (You will see the 2 micro HDMI ports in this image as well if it wasn’t clear from the instructions above about where to plug the micro HDMI cable to the unit).

Power Supply

Insert the power supply into an appropriate wall socket. It is recommended that you have some sort of switch on the socket so that you can turn the PI on and off using the switch. If you don’t have a switch then the only way to power on and off is to insert and remove the power cable from the unit itself which isn’t ideal.

Power On The Raspberry PI

Press the switch on the power socket to start your Raspberry PI 4.

You should now see the system come to life and you can follow some more of the guides on this site.