Without the PC power supply unit (PSU), your computer is useless. The power running through your home is an alternating current (more commonly known as 'AC'). Your computer needs a direct current (known as 'DC') in order to run. The switcher technologies within the power-supplies are responsible for directing and converting the currents. Lacking that little box full of inventive technology, your computer would not turn on.
Before the advent of the current PC power supply, turning on a computer meant the use of humongous capacitors and transformers. The applied science of modern times has much reduced the bulk of the former components needed while still fulfilling the targeted demand. Because this component has to go through the cycles of heating and cooling each and every time the computer is turned on and used, it happens to be one of the more likely parts to malfunction or even completely fail. … Read More