Overvoltage and Overcurrent Protection Protect Your PC From Damage Redundant power supplies are suitable for data center facilities and business environments, where uptime is essential. It minimizes downtime and prevents damage to the internal PC components. If one of them stops working, the PC will keep running as normal. Each power supply has the capability of powering the entire computer alone. Redundant Power Supplies Prevent DowntimeĪ redundant power supply system lets your PC use two or more power supplies. They tend to be more expensive than the other types. Modular power supplies have no hardwired cables, so you can choose which ones you want to connect. Non-modular PSUs may also look unsightly if your PC case has a window. Semi-modular power supplies have less hardwired cables, so they tend to cause less overheating, avoiding damage to the computer's components. This kind of construction may obstruct airflow and cause overheating inside the computer case. Non-modular power supplies are generally cheaper and they feature several cables soldered to the same circuit board. Fully-Modular and Semi-Modular Power Supplies Both PFC mechanisms also distribute the power more efficiently between the components of your computer. Active PFC power supplies use electronic circuits, while the passive PFC ones use inductors and capacitors. The components of your PC cannot use reactive power, but energy companies still charge you for it. Power factor correction (PFC) power supplies reduce the amount of reactive power your computer produces. Active and Passive PFC Power Supplies Help You to Save on Energy Bills These power supplies are the most common in modern computers.
ATX12V v2.0 power supplies use a 24-pin main connector and a 4-pin connector for the processor. The ATX12V v1.0 models use a 20-pin main connector, a 4-pin 12V connector for the processor and a 6-pin auxiliary connector. ATX12V Power Supplies Use a 4-Pin Connector for the ProcessorĪTX12V power supplies look almost identical to the ATX ones, but they have different power connectors. Most models have SATA connectors, to power hard drives and optical drives. Unlike older computer power supplies, they have a soft switch instead of a physical switch, allowing turning them on and off via software. ATX Power Supplies Work With ATX MotherboardsĪTX power supplies fit ATX motherboards and computer cases.
They also provide power to the various components of the computer, such as hard drives, fans and optical drives. Computer power supplies convert the alternate current from the power outlets in your home to the direct current your PC uses.
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