The Caseless PC
Don't want to use liquid to cool the PC? Why not use foam? As seen above, this system builder assembled the PC without an actual chassis, installed the classic Windows 98 SE operating system, and then tested the final configuration. The modder immediately covered the hot mechanical parts with paper and cardboard, and then hosed the entire thing down with three cans of 750 ml polyurethane foam.
"Once everything was dry, [I] just cut out the connectors again with a sharp knife, made sure the drives could open and close, and cut out a hole for the air intake," the modder said. "No screws, no sheet metal, no plexi."