Computer Case Mod - Sonic The Hedgehog 2:

This was the second Sonic computer I had built. It needed to run cooler than my last and have room for lots of hard disks. I decided on a Thermaltake Armor full tower case. It is humongous and has room for everything. I watercooled the system and cut a new Sonic into the side. This time the sonic is from Sonic Adventure. The specs in this PC have changed over time but it right now sits with 4 gigs of ram, AMD Athlon x2 3000+ and 2 graphics cards.


First I traced an enlarged image of Sonic on the inside of the case. I drilled pilot holes and cut sonic out with a jig saw and tin snips. I had my father do the tricky work by his hand. I also removed the weird Armor flaps from the front and cleaned out all the fans and extra metal cages from the case.

Water cooling:

PC water cooling is not easy. When starting out it took hours of searching to find the right parts. You will find that everyone tells you complete kits are crap but then give no suggestions of where else to purchase parts. I highly recommend the following sites:,, and finally

Consult the parts list below for what you need and start to assemble the kit outside the case. Thread the anti kink cables on the tubing (this is the hardest part), rinse each piece with distilled water. Next attach the tubing to each device. Add hose clamps at all joints. Your water flow should be: Pump->Device 1->Device 2->Radiator->Reservoir->Pump. At some point in the system you will want to have a T line that is plugged so that you can easily drain the system. Next fill the line running to the pump and the reservoir. Turn the pump on and let it push the water through the system. Make sure the pump never runs dry. Keep adding the distilled water until the whole system is full. Next add a slight bit of your dye and let it run for a few hours closed. I made the mistake of not running a few hours and did not catch a very slow leak. It stained my desk and now I know better. Do not make the same mistake. When you are sure the kit is okay, drain it, install in case (preferably without undoing any of the lines) and refill. This time you will want to add the appropriate amount of Antifreeze/dye and anti-fungas drops. Enjoy a much cooler system and don't forget to flush it every year or so.


  • Radiator with fan
  • Reservoir for water
  • Petras Tech Shop Antifreeze/Dye
  • Petras Tech Shop Anti-fungal drops
  • Distilled water
  • T line
  • Line Plug
  • tubing (Inner diameter should be big enough to fit over all fittings)
  • Plastic hose clamps for the proper outer diameter
  • water blocks for whatever you wish to cool
  • pump
  • Anti Kink coils (based on outer diameter)


  • Avoid clear acrlyic water blocks
  • Make sure to put a drain port in
  • Make sure all parts are native to your tube size or you introduce bottle necks in the system
  • Make sure to leak test your system for a few hours


With sonic cut out I had to cover the inside so dust would not get in. Home depot sells sheets of thin Plexi glass which work great. They can be easily cut with a table saw and then attached to the inside via plastic cement/liquid nails (it comes in a calking tube) from a caulking tube. I let this dry for about 48 hours before touching it again.

Failed internal Genesis:

I had the idea of installing a real Genesis inside the system and have it run to an LCD on the front panel. I purchased a gamecube LCD screen and after disassembling set out to make a mount for it. I couldn't get anything that was nice looking and ended up ditching the idea. The goal was to have it run from a model 3 Genesis that was built into the unit.


The computer is just lit blue using Cold Cathodes.


This case is on it's way out. I'm not sure of it's fate yet, but Sonic3 shall replace it!