If the fan doesn't seem to work, try reconnecting the fan cable to the pins or even soldering the loose cable to the fan. If some of the screws seem to be interfering with the board itself and/or do not allow the box to be fully closed, you can, of course, screw some of them on so that they point towards the outside of the box. Then the fan cable must be connected to GPIO pins 2 and 3, looking towards the outside of the box. You will first screw the fan into place by using a small cross screw, with the screws and the fan logo pointing towards the inside of the box. The role of the fan, same as of the heat sinks, is to enable optimal cooling and performance of your RPi when it is under a heavy computational load. Now finish the job of setting up the hardware of your RPi by just attaching the fan to the top side of the board. It can be attached to the first four GPIO pins looking towards the center of the board, as seen in picture.

Moving on, you can now attach the RTC module.

In this point you absolutely must make sure that the top part of the box is over the GPIO pins array. The smaller 'legs' which come out on the both sides of the top side must be aligned with small holes on each side of the box. Make sure that the hole on the bottom side aligns with the GPU.Īfter that you can attach the top side of the box. Then you will attach the bottom of the box. We suggest that you start assembling the box from the sides of your RPi board, as then you can easily identify which side is which and how exactly the box must be put together by recognizing the port slots on the sides. The box is made of plastic, and is again covered in a foil that comes off easily. After that you can move on to assembling the box your RPi will be in.

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