[Video] How VRMs Work, a Guide by Buildzoid

Ever wondered what a VRM is and how it works? Buildzoid has just uploaded a video that covers the topic in some detail. It’s a perfect way for newer overclockers to understand in more detail the process by which the critical ICs in your computer actually get their power.

The Voltage Regular Module (VRM) of a motherboard or graphics card is one of the least understood aspects of many rigs, and yet it remains absolutely one of the most important components. The VRM essentially provides reliable, stable power to the computers most important components, i.e. the CPU, memory and GPU. The VRM is essentially a kind of ‘buck’ or ‘step down’ converter, converting the 12V rail of your PSU to something much lower for the CPU.

Buildzoid is a UK-based Czech overclocker with a gift for tackling the deeper technical aspects that inevitably come into play when overclocking. This video covering VRM design introduces the key concepts of how a single phase VRM works. A single phase VRM or buck converter involves a switch which charges a conductor or choke which causes a stable voltage drop to something like 1.2V. Once we get to multi-phase VRMs, things get a bit more complex. I’ll let Buildzoid do the explaining.

Check out the full video here on the Actually Hardcore Overclocking YouTube channel.

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