PSU Tech Look: Cable Length and Voltage Regulation

Paul_Johnson

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Introduction



When building a “new” PC one of the components that enthusiasts often pay less attention to, or often reuse, is their power supply. And, why not? For the most part, the ATX12v/EPS standards over the years have not changed nearly as much as other facets of the market and, barring some issues with efficiency and low power sleep states, most of the changes that have impacted power supplies are not noticeable to the end-user so long as they push the “on” button and their system powers up.



Therein we find one of the problems. What happens when you get everything installed in your brand new shiny case and you go to connect your EPS or 24pin ATX cable only to find out that, between the placement of those connectors on your motherboard and the layout of your case, your cables won’t reach? Or, if they do reach, the cables are sitting right on top of your CPU HSF and forget about cable management even being possible? Or, if everything does reach you are left over with...

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