pctechguide.com

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

Baby AT (BAT) Motherboard Form Factor

The Baby AT (BAT) format reduced the dimensions of the motherboard to a typical 9in wide by 10in long, and BAT motherboards are generally characterised by their shape, an AT-style keyboard connector soldered to the board and serial and parallel port connectors which are attached using cables between the physical ports mounted on the system case and corresponding connectors located on the motherboard.

BAT

With the BAT design the processor socket is located at the front of the motherboard, and full-length expansion cards are intended to extend over it. This means that removing the processor requires the removal of some or all expansion cards first. Problems were exacerbated by the increasing speeds of Pentium-class processors. System cooling relied on the AT power supply blowing air out of the chassis enclosure and, due to the distance between the power supply and the CPU, an additional chassis fan or active heatsink became a necessity to maintain good airflow across the CPU. AT power supplies only provide 12V and 5V outputs to the motherboard, requiring additional regulators on the motherboard if 3.3V components (PCI cards or CPUs) are used. Sometimes a second heatsink was also required on these voltage regulators and together the various additional heat dissipation components caused serious obstruction for expansion slots.

Some BAT designs allow the use of either AT or ATX power supplies, and some ATX cases might allow the use of a Baby-AT motherboard.

  • Evolution of the motherboard
  • BIOS – What motherboard BIOS does for a PC
  • CMOS – complementary metal oxide silicon – RAM chips on motherboards
  • EFI – Extensible Firmware Interface – explained
  • Motherboard form factors
  • Baby AT (BAT) Motherboard Form Factor
  • LPX – Low Profile eXtension motherboard form factor
  • ATX form factor
  • NLX – New Low profile eXtended – form factor for motherboards
  • Micro ATX motherboard form factor
  • FlexATX motherboard form factor
  • BTX – Balanced Technology eXtended – Motherboard Form Factor
  • Riser architectures for motherboards
  • CPU interfaces – motherboard slots and sockets for AMD and Intel processors

Filed Under: Motherboards Tagged With: Baby AT form factor, Baby AT motherboard, BAT, BAT form factor

Latest Articles

How to Get Started With Gambling at Online Casino

If you’re new to the world of gambling, starting out at an online casino can be a little daunting. With so many games and betting options available, where do you start? In this article, we’ll take you through the basics of how online casinos work, and give you some tips on playing with bonuses, … [Read More...]

Hard Disk Perpendicular Recording

In perpendicular recording, the magnetisation of the bit is aligned vertically - or perpendicularly - in relation to the disk drive's platter. Since the bits do not directly oppose each other, the need for transition packing is significantly reduced. This allows bits to be more closely … [Read More...]

Sound Card Components

The modern PC sound card contains several hardware systems relating to the production and capture of audio, the two main audio subsystems being for digital audio capture and replay and music synthesis along with some glue hardware. … [Read More...]

Gaming Laptop Security Guide: Protecting Your High-End Hardware Investment in 2025

Since Jacob took over PC Tech Guide, we’ve looked at how tech intersects with personal well-being and digital safety. Gaming laptops are now … [Read More...]

20 Cool Creative Commons Photographs About the Future of AI

AI technology is starting to have a huge impact on our lives. The market value for AI is estimated to have been worth $279.22 billion in 2024 and it … [Read More...]

13 Impressive Stats on the Future of AI

AI technology is starting to become much more important in our everyday lives. Many businesses are using it as well. While he has created a lot of … [Read More...]

Graphic Designers on Reddit Share their Views of AI

There are clearly a lot of positive things about AI. However, it is not a good thing for everyone. One of the things that many people are worried … [Read More...]

Redditors Talk About the Impact of AI on Freelance Writers

AI technology has had a huge impact on our lives. A 2023 survey by Pew Research found that 56% of people use AI at least once a day or once a week. … [Read More...]

11 Most Popular Books on Perl Programming

Perl is not the most popular programming language. It has only one million users, compared to 12 million that use Python. However, it has a lot of … [Read More...]

Guides

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

Recent Posts

Installing the Software for the ADVC-55 DV Converter – including NERO

Now it's time to install the Canopus Let's CONVERT application. Please note: Since the creation of this tutorial the Canopus Let's CONVERT software … [Read More...]

Windows XP Startup Applications

When specifically investigating startup problems, you can use the System Configuration Utility's (see the Clean Boot tutorial) Startup tab to … [Read More...]

6 Huge Features of Ruby on Rails

You've probably heard of Rails, Ruby or Ruby on Rails, especially in conversations about web application development or perhaps you've already … [Read More...]

[footer_backtotop]

Copyright © 2025 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors