Instead of using traditional cooling methods, this modder uses a top panel which opens and closes based upon the computer’s temperature. Sounds just like the accessory you might need for a powerful gaming PC.
Most of the top panel is taken over by the vents which operate thanks to an Arduino board and servo motor. The Arduino senses the temperature from the motherboard and drives the servo motor to open and close the fins. You can also read the temperature on an illuminated LCD screen near the front part of the top panel. There’s also space left for USB ports, MIC and headphone ports.
The case mod is superbly finished on a styrene sheet cut precisely with water jet cutter. As soon as the power is switched off, the vents slam tight without a gap. Read the discussion threads on the Tempest SXR case mod project.