When choosing a power supply, it is important to consider the wattage needed for your system. Make sure to select a power supply that can provide enough power for all your components, with some extra headroom for future upgrades. Additionally, look for a power supply from a reputable brand with good reviews to ensure reliability and efficiency. **

A power supply of 5V800mA would require a power supply that can provide at least 5V and 800mA of current. It is important to ensure that the power supply can deliver the required voltage and current without exceeding the limits to prevent damage to the device. It is recommended to use a power supply that can provide slightly more current than the required 800mA to allow for any fluctuations in power consumption. **

The choice between power supply and motherboard depends on the specific issue you are experiencing. If your computer is not turning on at all, it could be a problem with the power supply. However, if your computer is turning on but not functioning properly, it could be a problem with the motherboard. It's important to troubleshoot and diagnose the issue carefully before deciding which component to replace. If you're unsure, it may be best to consult with a professional technician. **

The choice between a linear power supply and a switching power supply depends on the specific application and requirements. Linear power supplies are known for their low noise and high accuracy, making them suitable for applications that require precise voltage regulation and minimal electromagnetic interference. However, they are less efficient and generate more heat, which can be a concern in some applications. Switching power supplies, on the other hand, are more efficient and compact, making them suitable for applications where size and energy efficiency are important. They are also capable of handling a wider range of input voltages. However, they may introduce more noise and have lower output voltage accuracy compared to linear power supplies. Ultimately, the choice between the two depends on the specific needs of the application, such as size, efficiency, noise, and voltage regulation requirements. **

When choosing between a System or Pure Power power supply, it ultimately depends on your specific needs and preferences. A System power supply is designed to provide stable and reliable power for your system components, ensuring smooth operation and longevity. On the other hand, a Pure Power power supply focuses on delivering clean and efficient power with minimal noise and interference, which can be beneficial for high-performance systems or sensitive components. Consider your system requirements and budget to determine which type of power supply would be the best fit for your setup. **

A switched-mode power supply (SMPS) is a type of power supply that uses a switching regulator to convert electrical power efficiently. It can provide a constant voltage or constant current output, depending on the design. A constant voltage power supply maintains a stable output voltage regardless of changes in the load or input voltage. It is commonly used in electronic devices that require a consistent voltage for proper operation. A constant current power supply, on the other hand, maintains a stable output current regardless of changes in the load or input voltage. It is often used in applications such as LED lighting and battery charging, where a consistent current is required for proper operation. **

No, you cannot connect a modular power supply cable to your PC power supply. Modular power supply cables are designed to be used with modular power supplies, which allow you to connect only the cables you need for your specific setup. Using a modular cable with a non-modular power supply can cause damage to your components and potentially create a safety hazard. It is important to always use the cables that are specifically designed for your power supply to ensure proper functionality and safety. **

Connecting a power supply behind another power supply can cause a short circuit and potentially damage both power supplies. This is because the output of one power supply is not designed to handle the input of another power supply. It can also lead to overheating and potentially pose a fire hazard. It is important to always connect power supplies according to their intended use and specifications to avoid damaging the equipment and ensuring safety. **