Definition

voltage regulator module (VRM)

Part of the Smart grid glossary:

A voltage regulator module (VRM) is an installable module that senses a computer's microprocessor voltage requirements and ensures that the correct voltage is maintained. If you are changing your computer's microprocessor (for example, changing from a Pentium to a Pentium Pro or a Pentium with MMX ), you need to add a voltage regulator module to the existing voltage regulator in the motherboard so that the new voltage requirements can be detected and accommodated.

In the case of the Pentium, the original Pentium has the same voltage requirement for its core or basic operation as for its I/O operation. Both use 2.8 volts. However, the Pentium Pro and the Pentium with MMX have different voltage requirements for core (2.8 volts) and I/O (3.3 volts). Adding a VRM allows it to regulate the voltage for I/O while the original regulator built into the motherboard continues to regulate core voltage.

This was last updated in March 2011
Contributor(s): Joshua Longley
Posted by: Margaret Rouse

Related Terms

Definitions

  • thing (in the Internet of Things)

    - A thing, in the context of the Internet of things (IoT), is an entity or physical object that has a unique identifier, an embedded system and the ability to transfer data over a network. Given the ... (WhatIs.com)

  • full HDTV (ultra-HD, true HDTV, 1080p)

    - Full HDTV, also referred to as ultra-HD, true HDTV, and 1080p, is a television (TV) display technology that surpasses the video quality and sharpness of the original high-definition television (HDT... (WhatIs.com)

  • Internet of Things (IoT)

    - The Internet of Things (IoT) is a scenario in which objects, animals or people are assigned unique identifiers and given the ability to automatically transfer data over a network without requiring ... (WhatIs.com)

Glossaries

  • Smart grid

    - Terms related to smart grids, including definitions about utility electricity delivery systems and words and phrases about smart meters and distributing, monitoring and billing electrical power.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About voltage regulator module (VRM)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.