Computer hardware overheating protection device

The utility model discloses a computer hardware overheating protection device. Case outer cover, a side plate is fixedly mounted on the left side of the case outer cover; a mounting plate is fixedly mounted in the side plate; multiple sets of mounting holes are symmetrically formed in the two sides of the mounting plate, multiple sets of inner threaded holes are formed in the surface of the mounting plate, multiple sets of pipe grooves are formed in the mounting plate, the two ends of each set of pipe grooves communicate with pipe opening connectors, the multiple sets of pipe opening connectors communicate with the upper pipeline and the lower pipeline, and a cooling liquid cavity and a micro water pump are fixedly mounted on the bottom side in the side plate. According to the utility model, the pipe groove is formed in the mounting plate; the cooling liquid in the cooling liquid cavity is circularly fed into the pipe groove through the micro water pump; the internal threaded holes areformed in the surface of