Abstract: An overheating indicator system for a power supply includes a detecting device, a control device, and an indicating module coupled to the control device. The detecting device is configured to detect a temperature of a power supply to receive a current value. The control device includes a microcontroller coupled to the detecting device. The microcontroller is configured to set a reference value, compare the current value with the reference value, and send a first drive signal to the indicating module after the current value is greater than the reference value, thereby driving the indicating module to indicate the current value is too high.

Abstract: A hard disc assembly includes a box and a hard disc body slidably mounted to the box. The box comprises a driving unit and a pivoting pole. The hard disc body comprises a disc member and a magnetic arm. A magnetic head is located on the magnetic arm and contacts the disc member. The magnetic arm is connected to the pivoting pole of the driving unit. The driving unit is configured to move the magnetic arm on the disc member. The magnetic head is configured to access data in the disc member when the disc member rotates. The magnetic head remains in contact with the disc member when the disc member stops rotating.