"Micro Cooling Fan" computer components are highly integrated precision components, when the current flows in the hardware, the impact on the quality of the current hardware is critical, under-voltage, overload and volatility ranging from causing the crash or restart, it caused heavy damage to the hardware directly. "Micro Cooling Fan" Cause: The cause of unexpected restart power for many reasons, such as mains voltage grid instability, chassis, power supply failure, motherboard component damage and so on. Most of the reason is because the hardware can withstand beyond the upper range, this upper limit is generally by the board quality, damage, operating environment, and a combination of quality to decide. When we use "Micro Cooling Fan" computer, through prolonged use, maintenance, repair, should be able to find a balance point of their computer, each computer will have their own suitable working environment, only to master their own computer case (including software) in order to lay a good foundation for the normal operation of the computer.