Abstract: A photovoltaic-thermoelectric hybrid device is disclosed, which comprises a bi-layer silicon substrate, an electrode unit having a first electrode and a second electrode disposed on and connected to the bi-layer silicon substrate, and an external circuit connecting to the electrode unit, in which an electric current is set up between the first electrode and the second electrode and flows through the bi-layer silicon substrate as the first electrode is either heated or illuminated more than the second electrode.

Abstract: A management device includes a control module, a display module, and an input module. The control module includes a control chip and a detecting unit. The detecting unit is used to receive first signals corresponding to a working status of hard disks and a backplane. The display module is coupled to the control chip to display parameters presenting the working status of the hard disks. The input module is used to input signals to control the display module to display more detailed parameters of the hard disks.

Abstract: An expansion board that can be inserted into a first memory slot is provided. The expansion board includes a circuit board, a number of second memory slots, a frequency divider, and an edge connector. The second memory slots and the frequency divider are arranged on the circuit board. The edge connector is set on a side of the circuit board to engage in the first memory slot. The second memory slots and the frequency divider are coupled to the edge connector, to communicate with the first memory slot via the edge connector.

Abstract: A method for testing stability of a server includes the following steps. Providing a first user input interface for a user to input test parameters. Generating a control signal according to the input test parameters and transmitting the control signal to the BMC of the server. Controlling the server to start and shut down via the BMC. Detecting whether the tested characteristics are within specified ranges during each start and shutting down operation. Generating a SEL if any abnormal result is obtained and records a test time when the abnormal result is obtained in the SEL. Storing the generated SEL in a storage unit. Providing a second user input interface on the display for the user to input conditions to filter test results. And responding to the input conditions and outputting corresponding test results to the display.

Abstract: A queue reminder method applied in a computing device computes a predicted waiting time interval of each uncalled number. The method generates a message when the predicted waiting time interval of an uncalled number is less than a preset time interval, and sends the message to a communication account associated with the uncalled number.

Abstract: A display device is coupled to a computer, and the computer accommodates a motherboard. The display device includes an interface unit connected to the motherboard, a display panel, and a processor electrically coupled to the interface unit. The processor is used to: receive a power-on self test (POST) code from the motherboard via the interface unit, convert the POST code into a debug code, and control the display panel to display the debug code.

Abstract: A device includes a main body and a control circuit received in the main body. The main body includes three push buttons and a display. The control circuit includes a parameter setting unit, a rotation speed detection unit, and a display unit. The push buttons are operated to input signals to the parameter setting unit. The parameter setting unit generates and saves a reference value according to the signals received from the push buttons, and outputs the reference value to the display unit. The rotation speed detection unit detects an actual rotation speed of a fan, and outputs the actual rotation speed to the display unit. The display unit controls the display to display the reference value and the actual rotation speed.

Abstract: A Universal Serial Bus (USB) hub includes a USB input, a number of USB outputs, a USB controller, a power processing module, and an alarm. The USB controller controls data transmission between a connected USB device connected to the USB output and a computer. The power processing module obtains a power of each USB output and sums the power of all the USB outputs. The power processing module further compares a preset power value with the sum of the power. When the sum of the power is greater than the preset power value, the power processing module outputs a control signal to activate the alarm.

Abstract: A fan test system includes a control module. The control module includes a temperature-speed table storing standard speeds at different temperatures of a fan, a counter loaded with a default value, and a fan speed control unit setting the time interval for obtaining the actual speed of a fan corresponding to a certain temperature. The fan speed control unit obtains the actual speed of the fan at every interval time, and determines whether the speeds obtained at predetermined continuous interval times are equal. The fan speed control unit obtains the standard speed of the fan according to the certain temperature if the speeds are equal. It indicates the fan is qualified in response to the actual speed being equal to the standard speed.