Abstract: An electronic device includes a chassis and a plurality of electronic modules. The chassis includes a front plate, a rear plate, a top plate, two side plates, a bottom plate and a plurality of dividing plates. The electronic modules are set between two adjacent dividing plates. The front plate includes an air inlet defined in a bottom. A first space is defined between a bottom of each dividing plate and the bottom plate. A second space is defined between a top of each dividing plate and the top plate. At least one of the top of the dividing plate and the bottom of the dividing plate is arranged stepped down from the front plate to the rear plate. The airflow flows through the air inlet, the first space, then flows up through the electronic modules, and then flows to the rear plate.

Abstract: An electronic device includes a chassis, a power supply, and an air duct. The chassis includes a top plate, two side plates, a front plate set in a front of the top plate, and a baffle set at an inside of the front plate. The front plate, the baffle, the top plate and the side plates together define a receiving cavity for receiving the power supply. The front plate includes an air inlet adjacent to one end of the power supply. A fan is set at another end of the power supply. The side plate defines an opening. The air duct set on an outside of the side plate with the opening. An air channel is formed between the air duct and the side plate with the opening. A distal end of the channel forms an air outlet.

Abstract: A method for controlling rotation speed of a fan is applied in an electronic device, which stores a standard work temperature value and a critical temperature value greater than the standard work temperature value. The method includes following steps. Periodically obtaining a temperature value of the electronic device, comparing the obtained temperature value with the standard work temperature value and the critical temperature value. If the obtained temperature value is less than the standard work temperature value, decreasing the rotation speed by a first preset value. If the obtained temperature value is greater than the standard work temperature value and less than the critical temperature value, increasing the rotation speed by a second preset value. If the obtained temperature value is greater than the critical temperature value, increasing the rotation speed by a third preset value. The third preset value is greater than the first and the preset values.

Abstract: A method for controlling a speed of a fan of an electronic device is provided. The method includes determining whether the electronic device is overheated or overcooled when the fan is in a real-time working status of uniform speed. The fan is controlled to accelerate when the electronic device is overheated, or decelerate when the electronic device is overcooled. A controller and an electronic device using the same are also provided.

Abstract: A container data center assembly takes account of ambient temperatures as well as the amount of heat generated by working servers includes a first and second and third circulatory cooling systems and a cooling tower. When the cooling tower can itself be cooled by the ambient temperature to a temperature less than a preset value, the third circulatory cooling system operates only to cool a server rack. When the cooling tower is heated by the ambient temperature or by the high temperature of returning coolant to a temperature equal to or greater than the preset value, the first circulatory cooling system operates to cool the server rack, and the second circulatory cooling system operates to cool a heat dissipating module.

Abstract: A preventive apparatus and a preventive method for preventing an automatic server shutdown are described. The preventive apparatus includes a power consumption determination unit and a controller. The power consumption determination unit compares the power consumption of the server with a preset power consumption value and determines whether the power consumption of the server has reached the preset power consumption value. If the power consumption of the server has reached or exceeded the preset power consumption value, the controller sends a command to the server to control the server to decrease the operating frequency of internal power device or component, to achieve a reduced power consumption in the server.

Abstract: An electronic device includes a motherboard. A first heat sink and a second heat sink are set on the motherboard. A number of memories are set on the motherboard and located at two sides of the first heat sink. An air duct is located between the first heat sink and the second heat sink. The air duct includes a main body and two air baffles. The main body includes a top board and two side boards extending from opposite sides of the top board. The top board and the two side boards cooperatively define an airflow channel. The airflow channel includes an air intake facing the first heat sink, and an air outlet facing the second heat sink. Each side board defines an opening. Each air baffle is pivotably mounted to the corresponding side board and adjacent to the corresponding opening.

Abstract: A data center includes a container, a server system, an air conditioner, and an air guide. The container includes a floor, and a sidewall that defines a through hole adjacent to the floor. The server system includes a rack and a number of servers mounted in the rack. The rack defines an air outlet apart from but facing the sidewall. The air conditioner includes an evaporator and a condenser. The evaporator is positioned on the top of the rack. The condenser defines an outlet and is sandwiched between the bottom of the rack and the floor and extending through the through hole. The air outlet of the condenser faces outside of the container. The air guide is a sheet extending from an edge of the evaporator that is distant from the rack and then bends to extend toward the floor.

Abstract: A rack-mounted server system includes a rack, a number of server units mounted in the rack adjacent to a front end of the rack, a fan module, and a number of power units located beside the server units. The rack includes a back wall defining an air outlet aligned with the server units. The fan module is fixed to the back wall and fitted in the air outlet. The power units are arranged in front of the fan module. An air-guide plate is mounted in the rack between the fan module and the power units to guide a part of the airflow generated by the fan module to flow through the power units.

Abstract: A fan speed control system performed by a fan control board for controlling a fan shared by a number of servers in a server cabinet includes a instruction receiving module and a speed adjusting module. The instruction receiving module receives fan speed control instructions from the number of servers, wherein the fan speed control instructions consist of speedup instructions and slowdown instructions. The speed adjusting module responses to the fan speed control instructions to increase or decrease the speed of the fan by a preset value.

Abstract: A cooling system includes a first temperature sensor, a pump, a first controller, and a first filtering device. The first temperature sensor senses a temperature of an external water source and outputs a first temperature value. The pump pumps the water from the external water source. The first controller is connected between the first temperature sensor and the pump to receive the first temperature value, and compare the first temperature value with a first predetermined temperature value. If the first temperature value is less than the first predetermined temperature value, the first controller controls the pump to pump the water from the external water source. The first filtering device is connected to the pump to receive and filter the pumped water and output the filtered water to a cold water pipe of the container data center to cool servers of the container data center.

Abstract: An air conditioner control method applied in a container data center includes a container. The container includes a number of server racks and a number of air conditioners. Temperature and humidity values of the container are obtained. The return air temperature value of each air conditioner are obtained when any temperature and humidity of the container is not greater than any value of a preset range. The air conditioner which has the lowest return air temperature is determined when any temperature and humidity of the container is not greater than any value of the preset range. A current mode of the determined air conditioner is then switched to an air supply mode, a rotation speed of the determined air conditioner is increased, and the rotation speed of the remaining air conditioners are decreased. A related air conditioner control system is also provided.

Abstract: A container data center assembly includes a first cooling system including a cooling apparatus, a first container data center, a sensor, and a second valve connected by pipes in that order, and a second cooling system including the cooling apparatus, a second container data center and a third valve connected by pipes in that order, and a first valve connected between the second container center and the sensor. When the cooling liquid containing heat from the first container data center is still cooler than a preset value, the first valve is opened, and the second valve and the third valve are closed. Thus the cooling liquid from the first container data center continues to flow into the second container data center to be put to further work in cooling the second container data center.

Abstract: A fan control system includes a sensor and a controller to control a fan. The controller obtains an actual temperature value sensed by the sensor. The controller speeds up the fan with a first predetermined value, in response to the actual temperature value being between a first and second trigger value, and speeds up the fan with a second predetermined value greater than the first predetermined value, in response to the actual temperature value being greater than the second trigger value.

Abstract: A fan control system is executed by a microcomputer of a container data center. The center includes a number of server racks, and each server rack includes a number of fans. The system includes a control module and an adjusting module. The control module obtains a current power consumption of each server rack, determines the current power consumption of which server rack is greater than a standard value, and transmits an adjusting signal to each determined server rack. The adjusting module decreases a rotation speed of at least one fan of each determined server rack according to the adjusting signal until the current power consumption of each determined server rack is less than the standard value. A related fan control method is also provided.

Abstract: A verification method for a rotation speed value of a fan includes steps of receiving a predictive rotation speed value of the fan, an input environmental temperature value and a plurality of temperature values of components, sending the received environmental temperature value and a plurality of temperature values of components to the control unit to control the fan to rotate on the condition of the input temperature values; acquiring the actual rotation speed value of the fan on the condition of the input temperature values; detecting whether the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan; and outputting information of showing that the actual rotation speed value of the fan does not match the predictive rotation speed value of the fan if not.

Abstract: A container data center includes a container and a cooling system. The container defines an air inlet and an air outlet. The cooling system includes a housing, a heat dissipation plate received in the housing, and a fan. The housing defines an airflow output aligning with the air inlet of the container and a number of access holes. The fan is received in the housing and aligns with the airflow output. The heat dissipation plate defines a number of through holes. The fan draws airflow to enter the housing from the access holes and extend through the through holes. The airflow enters the container from the airflow output of the housing and the air inlet of the container to be heated. The heated air is exhausted out of the container through the air outlet.

Abstract: A load card for testing different types of PCI slots is provided. The load card includes several gold fingers, and resistor selection circuits. Each gold finger corresponds to one PCI slot. Each resistor selection circuit includes a resistor to test at least one PCI slot working in one working voltage. When a PCI slot working at a working voltage is to be tested, the gold finger connects to the PCI slot, and the resistor selection circuit including the resistor to test the PCI slot working at the working voltage is enabled and others are disabled in response to an operation of the user.

Abstract: A detecting method for detecting fan failure in an electronic device is provided. The electronic device includes at least one fan and an air inlet structure. A first sensor is mounted on a central processing unit (CPU) and senses a first temperature value. A second sensor is mounted on the air inlet structure and senses a second temperature value. The detecting method includes steps of acquiring the first temperature value and the second temperature value; calculating a power value of the CPU; calculating a thermal resistance value based on the acquired first temperature value, the acquired second temperature value and the power value of the CPU; determining whether the calculated thermal resistance value is more than a predetermined thermal resistance value; and generating fan failure information when the calculated thermal resistance value is more than a predetermined thermal resistance value.

Abstract: A container data center includes a container and a server cabinet received in the container. The server cabinet includes a rack and a number of heat dissipation devices mounted to a rear side of the rack. Each heat dissipation device includes a case fixed to the rack, a fan mounted to an outer side of the case, and a heat dissipation plate received in the case and aligning with the fan. The heat dissipation plate defines a vent. The fan draws heat air through the vent of the heat dissipation plate from the rack, and the heat air is cooled by refrigerant received in the heat dissipation plate to become cool air. The cool air flows in the container, and circularly flows into the cabinet from a front side of the cabinet.