Top-rated efficient computer power supplies have high-quality components to accommodate all mainstream computer and server systems. When choosing your unit, consider the form factor, cables, amperage, efficiency, protection, and specific options to customize your build.
A Form Factor and Cabling Option for Every Build
If purchasing a unit that is nearly identical to what you already have or setting up a new system, an ATX standard power supply is a good option for many desktop PC users. For the Small Form Factor (SFF) PC enthusiast, there are SFX, CFX and other SFF power supply sizes. A semi-modular power supply has only essential cables pre-installed, ensuring less wire clutter in the computer casing. Fully modular units allow builders to install cables as required, which improves airflow.
Multiple Connections Power Your System
A 24-pin connector and extension cable is popularly used to power motherboards, but the application can vary depending on the model. Four- and eight-pin connectors provide power to the central processing unit (CPU). Some graphics processing units (GPUs) require a specific power cable configuration to operate efficiently, and most power supplies address this required flexibility by offering cables in six- and eight-pin combinations. Serial ATA (SATA) connections provide power to storage devices, fan controllers and Red Green Blue (RGB) hubs in computer cases. For less common accessories, such as water cooling pumps, look for a power supply that has Molex connectors.
Match Wattage for Unique Requirements of Your PC
The watt output of a power supply determines the number and type of components the unit can support. High-end machines with several hard drives, demanding processors, discrete graphics cards, and other case accessories may require as much as 600W to 800W power supplies. Top-rated efficient computer power supplies provide a high continuous power output to meet the demands of the load and prevent potential PC problems. Power supplies with an 80 PLUS® certification ensure 80% efficiency when supporting from 20% through 100% of the maximum load. Titanium, platinum, gold, silver and bronze ratings show the different efficiency levels for 115-volt power units. Efficient computer power supplies allow systems to run quieter since the fans run less frequently.
Efficient Computer Power Supplies Have Built-In Fail Safes
Some power supplies have surge protection built-in to keep components safe from power-related problems. Voltage protection shuts down a unit in case the output voltage exceeds a set limit. Overcurrent and overload protection circuits protect the power supply and computer by shutting down input power in case of excessive power load or current.
Multiple Premium Options Help Improve the Build Customization
A built-in cooling fan helps transfer heat from components to ensure uninterrupted computer use. A passive or active Power Factor Correction (PFC) power supply helps reduce the cost of electricity by minimizing the reactive power produced in computers. Some standard and server power supplies have a Built-In Self-Test (BIST) button for isolating the unit and troubleshooting power failures throughout your system. Top-rated efficient computer power supplies with programmable RGB lighting allow configuration for a uniform visual effect when synchronized with other lighting in your PC.
