Introduction: Event Horizon Watercooled PC Build

About: Creating custom water cooled PC cases and case designs. Creating art using functional technology.

Event Horizon is a custom water cooled PC build with a Sci-Fi space theme in the Wraith PC case. Follow along as I walk through the steps to create this beast.


You can Purchase the case at:

Purchase CPU & GPU blocks, custom cables & Cable Combs etc:

The case comes with GPU riser cable, D5 pump, partial water cooling loop run and lighting.

PC Parts (Can all be found on

  • CPU: I9 9900k
  • GPU: Nvidia RTX 2080Super
  • Motherboard: ASRock H370M-ITX
  • RAM: Corsair dominator Platinum 32gb DDR4-3200mhz
  • Storage: Samsung 860 PRO SSD 1TB
  • PSU: SilverStone 800W SFX 80 Plus Power Supply
  • 2x 240mm Radiator
  • 4x 120mm Fan
  • G1/4 Fittings

Tools Used

  • Heat Gun
  • Phillips plus tip screw driver
  • Paint Sprayer
  • Measuring Cup


  • Paint
  • Water
  • Colored coolant Fluid
  • Tubing

Step 1: Removing Panels

Remove the top, front and back panels from the chassis of the case. This is not necessary at this stage unless you will be applying paint to the panels to create a different look.

The PC can be assembled inside without removing the panels however, assembly is easier with the panels removed and allows you to install the radiator and fans easily if you will be water cooling the PC.

Step 2: Painting Panels

With the panels removed, we can apply the various layers of paint. I went with deep sea blue with silver flakes to create an color similar to outer space and stars in the night sky.

Mix your paint and thinner as directed on the label of the paint used and add flakes to the mixture.

Apply even coats of color then clear coat and allow to dry in ventilated area.

Step 3: Installing Components

The main components of computer were assembled. The processor, motherboard and ram once put together are installed into the chassis of the case and head in place with the provided screws.

The hard drive is then installed onto the bottom panel in the storage locations ans secured with the provided screws in the pre-drilled mounting holes.

The power supply stand offs are installed and the power supply secured in place at the provided location on the bottom panel.

Once the motherboard, storage and power supply have been installed, the pump was assembled. The pump is included in the case and comes in 3 pieces. The rubber seal is placed in between the top and bottom halves and screwed together, then screwed on to the acrylic plate.

Once the pump is installed, the GPU can be installed using the included riser cable.

Step 4: Installing Fittings

With all the computer components installed, we install the fittings.G1/4 fittings are installed on the gpu block, cpu block and distribution block.

Step 5: Installing Radiator

The radiator is then secured to the top and front panel. Two 120 mm fans are installed on each radiators with the front radiator setup to pull air in and the top radiator set to exhaust.

once the fans and secured to the radiator using the included screws and the radiator secured to the panel, the panel is secured to the chassis once more.

Step 6: Installing Tubing

Hard tubing was used in this build however soft tubing is an option.

The tubes are bent to the desired shape and length for each area. A heat gun is used to soften the acrylic tubing and once flexible enough it is bent and then allowed to cool.

Once each tubing run has been bent to the required length, the tubing is installed onto the fittings ans secured with the thumb tight fasteners.

Step 7: Mixing Coolant

The coolant mixture is mixed in 2 to 1 with distilled water to be added to the loop, distilled water alone can be used.

Step 8: Filling the Loop

Using a syringe, the coolant mixture is added to the loop through the fill port.

The built in coolant reservoir allows the coolant level to be easily monitored. Add coolant to the reservoir until filled.

Step 9: Cycling the Loop

To allow the coolant to circulate around the system, the loop is cycled. The pump is connected to the power supply and the power supply cycled on to pump the coolant through the loop.

While cycling the loop, the reservoir is monitored to ensure it does not run dry. Once the reservoir gets low, repeat the previous step and refill it using the syringe. The loop is filled and cycled until completely full.

The loop is then allowed to run for a few hours to allow any air bubbles to escape.

Step 10: Connecting Cables

Once the cycling has ran for a few hours and there aren't any leaks, we connect the power cables for the components to the power supply.

The power cable for the motherboard, graphics card, fans, storage and LED are connected to the power supply.

Step 11: Boot System

Once all the power cables have been connected, the system can be powered on and the build is complete.

This build is a personal project and each PC is unique to the owner. Feel free to be creative and make your PC your own.

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