# The Electrical Heart: Taming the Power Supply

With the board and video sorted out, it was time to give power to the beast. The next big challenge was finding a home for the power supply unit (PSU). Although the TV is large, the interior was already full of things.

## An Unexpected Home: Thinking "Outside the Box"

  - **The problem:** The ATX power supply was a giant that wouldn't fit into the delicate interior ecosystem.
  - **The solution:** "Thinking outside the box," literally\! We decided to mount it on the outside, using the free space on the back.
  - **The portal:** To connect the power supply to the motherboard, we opened a new portal in the case to pass all the wiring through.
  - **Initial fastening:** We used the ever-reliable double-sided tape for a temporary fix. A classic\!

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```{image} /_static/img/10.png
:width: 400px
:align: center
:alt: Power supply mounted on the outer back of the TV
```

```{image} /_static/img/11.png
:width: 400px
:align: center
:alt: Hole for the cables
```

### Problems with the 24-pin cable

***But just when everything seemed to be going well...*** a new problem arose: the 24-pin connector on the power supply was too short and couldn't reach the motherboard.

```{image} /_static/img/12.png
:width: 400px
:align: center
:alt: 24-pin cable
```

Luckily, there's nothing a soldering iron and some heat-shrink tubes can't fix. With a lot of patience, we cut each of the 24 wires and extended them by splicing in a new section.

```{image} /_static/img/15.png
:width: 400px
:align: center
:alt: Cables extended
```

### Temporary mounting and cable management

With the cables now extended, we were able to continue with the assembly.

  - **Power supply:** We attached it "clandestinely" and temporarily with electrical tape.

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```{image} /_static/img/16.png
:width: 400px
:align: center
:alt: Temporary mounting of the power supply
```

  - **Hard drive and cables:** The next image shows the temporary location of the hard drive (blue) and the route of the power supply cables to the inside (orange).

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```{image} /_static/img/17.png
:width: 400px
:align: center
:alt: Temporary HDD location and cable route
```

Here you can see the inside of the TV with the board already installed and how the power supply cables (orange) enter through the cutout we made.

```{image} /_static/img/18.png
:width: 400px
:align: center
:alt: Interior with power supply cables
```

Finally, the hard drive in its place (yellow). And yes, as you can see, **we ran out of cable ties** and had to improvise with a cable (purple).

```{image} /_static/img/20.png
:width: 400px
:align: center
:alt: Final HDD mounting with improvised fastening
```