Water-cooling thermal dissipating system and thermal dissipating method

A water-cooling thermal dissipating system, comprising:

• an electronic device, comprising:
• a computing module comprising a heat generating unit;
• a power supply unit electrically connected to the computing module and configured to supply an electricity to the computing module;
• and
• a thermal dissipating device, comprising:
• a thermal conductive unit disposed corresponding to the heat generating unit, wherein the heat generating unit is attached to an external surface of the thermal conductive unit for thermal conduction;
• a pump coupled to the thermal conductive unit for pumping a cooling-liquid into the thermal conductive unit;
• a tank coupled to the pump, wherein the cooling-liquid is stored in the tank;
• a thermal exchanger coupled to the thermal conductive unit and the tank, wherein the cooling liquid is allowed to be forced to flow by the pump and into the thermal conductive unit, the tank, the thermal exchanger and the pump for absorbing heat produced by the heat generating unit, and the thermal exchanger then thermally transfers heat within the cooling liquid to an environment external to the thermal exchanger for dispersing heat;
• a controlling module configured to sense a working state and control heat dissipation efficiency of the thermal dissipating device;
• a cable connected to the computing module and the controlling module, wherein the computing module and the controlling module are electrically connected to each other through the cable so that the electricity generated by the power supply unit is conducted to the controlling module for powering the controlling module;
• wherein an abnormal signal is generated and sent to the computing module through the cable by the controlling module when the thermal dissipating device is sensed to be in an abnormal state by the controlling module, and the computing module then makes an alarm information and forces to shut down the electronic device after continually receiving the abnormal signal for a predetermined time.