pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

Motherboard Power

Power supply units can have up to three power connectors:

  • a 20-pin main power connector; the standard ATX power connector.
  • a 4-pin +12V power connector; required for all Pentium 4 processor-based systems.
  • a 6-pin AUX power connector; recommended by V2.03 of the ATX Specification for motherboard’s requiring 250W or 300W supplies.

The ATX/ATX12V Power Supply Design Guide (Version 1.2) provides design suggestions and reference specifications for a family of power supplies that comply with the ATX Specification (Version 2.03) for motherboards and chassis. It describes the new superset of the original ATX power supply – named ATX12V – as comprising a standard ATX unit plus the following enhancements:

  • Increased +12 VDC output capability: Motherboard components with unique voltage requirements are increasingly expected to be powered via DC/DC converters off the +12 VDC power supply output. This trend is due primarily to the higher power conversion and transmission efficiencies of +12 VDC relative to +5 VDC or +3.3 VDC. ATX12V power supplies should be designed to accommodate these increased +12 VDC current requirements and to address associated issues such as cross-regulation, capacitive loading, transient surge tolerance, cable voltage drop and cooling.
  • Power Connectors: To enable the delivery of more +12 VDC current to the motherboard, a new 4-pin receptacle/header combination – the +12 V power connector – has been defined. The presence of the +12 V power connector indicates that a power supply is ATX12V; the absence of the +12 V power connector indicates that a supply is ATX. To allow for greater than 3.3 V current, the AUX Power Connector is recommended for ATX and ATX12V power supplies with 3.3 V current greater than 18 A.

ATX12V power supplies are intended to be downward compatible with ATX power supplies. Consequently, it is required that an ATX12V power supply be able to provide the same typical +5 VDC and +3.3 VDC maximum continuous output currents as an ATX supply of the same total output power.

If your motherboard doesn’t support either the 4-pin +12V connector or 6-pin AUX power connector, no problem, simply connect the standard 20-pin power connector.

ATX

The connector has a latch to ensure both proper connection and correct orientation.

ATX

Line up the connector so that all pins are properly aligned and push it firmly into the motherboard ATX power socket so that the latch clips securely to the motherboard ATX power socket.

The Intel Front Panel Connectivity Guide seeks to aid system integrators in general – and the likes of motherboard, power supply and chassis manufacturers in particular – by describing connection and mechanical recommendations for all motherboards having internal connectors requiring external connection, and by so doing establishing some degree of standardisation in the area.

All of the following aspects of V1.0 (October 2000) of the guide are covered, even though the particular motherboard and system case used in the tutorial support only a subset of these features:

  • front panel switch/LED connectors
  • audio connectors
  • USB connectors, and
  • IEEE-1394 connectors.
  • Motherboard Upgrade Reasons
  • Motherboard Removal
  • Motherboard CPU
  • Motherboard Heatsinks
  • Motherboard Memory Identification
  • Motherboard Memory Installation
  • Motherboard Fit
  • Motherboard Power
  • Motherboard Panel
  • Motherboard Fan
  • Motherboard USB Ports
  • Motherboard FireWire Ports
  • Motherboard Audio
  • Motherboard Testing
  • Motherboard Floppy Connections
  • Motherboard IDE Connections
  • BIOS Settings
  • Motherboards and Win98
  • Motherboards and WinXP

Filed Under: How to Upgrade Your Motherboard

Latest Articles

Thermal Wax Printers

Thermal wax is another specialist technology - very similar to dye-sublimation - well-suited to printing on transparencies. They use CMY or CMYK rolls containing page-sized panels of plastic film coated with wax-based colourants. Thousands … [Read More...]

Intel Mobile Pentium II technology guide

The natural progression of the low-power Deschutes family of Pentium II processors to the portable PC market took place with the launch of the Mobile Pentium II range in April 1998. The new processor, and its companion Mobile 440BX chipset, … [Read More...]

How to turn Android Auto screen into an Android tablet with all apps

We are going to explain how to turn the Android Auto screen into an Android tablet with all the apps, and thus be able to do away with the limitations of this system for cars. The process of converting Android Auto into an Android tablet is a bit complex, and what you will end up doing is connecting … [Read More...]

Goodbye Bitcoin: the 3 alternative cryptocurrencies that have great upside potential, according to experts

Bitcoin has been a very lucrative investment for people that got into it early. One report from The Motley Fool pointed out that $10 of bitcoin … [Read More...]

Self-driving cars face their Achilles’ heel and may be targets of hackers

The market for self-driving cars is booming. Customers spent $22.22 billion on these autonomous vehicles in 2021 and they will likely spend more in … [Read More...]

How to avoid scams with bitcoin and other cryptocurrencies

Cryptocurrencies got a bad reputation when scams multiplied like ants on a piece of cake. Even today many people associate bitcoin and other … [Read More...]

WHAT IS CLOUD COMPUTING AND WHAT ARE ITS MAIN BENEFITS?

Users are Increasingly using cloud computing to store their information, which is replacing local storage. The business digitization process goes … [Read More...]

AI-Driven Software Improves Trading Strategies for Investors

Artificial intelligence technology is changing the state of modern finance. A growing number of investors are utilizing AI to improve the … [Read More...]

What You Need to Know When Choosing the Best VPN for an iPhones

Today millions of people have smartphones; most use them to access the Internet. Research shows that more than 50% of Internet users access it with … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

Upgrading From Windows 7 or 8 to Windows 10

First off what happened to Windows 9? The honest answer is no real answer has been given. Personally I think it's just easier to market Windows 10 … [Read More...]

Installing Windows 98 – Upgrading to Win98SE

In 1999 Microsoft released an upgrade to the original version of Windows 98, known as Windows 98 Second Edition. This included many improvements … [Read More...]

MSI 890GXM-G65 Review

Price: $127. The MSI 890GXM-G65 motherboard packs a lot of power in a very small space. Bang for buck you are getting a lot for your money.is an Intel … [Read More...]

[footer_backtotop]

Copyright © 2023 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors