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PC Power & Cooling Silencer Mk III 750 W Power Supply Review

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Transient Filtering Stage

As we have mentioned in other articles and reviews, the first place we look when opening a power supply for a hint about its quality, is its filtering stage. The recommended components for this stage are two ferrite coils, two ceramic capacitors (Y capacitors, usually blue), one metalized polyester capacitor (X capacitor), and one MOV (Metal-Oxide Varistor). Very low-end power supplies use fewer components, usually removing the MOV and the first coil.

In the transient filtering stage, this power supply doesn’t have an MOV, which is in charge of removing spikes coming from the power grid.

PC Power and Cooling Silencer MKIII 750wFigure 9: Transient filtering stage

On the next page, we will have a more detailed discussion of the components used in the PC Power & Cooling Silencer Mk III 750 W.