Welcome to Linux Knowledge Base and Tutorial
"The place where you learn linux"
Traveller''s Lunchbox

 Create an AccountHome | Submit News | Your Account  

Tutorial Menu
Linux Tutorial Home
Table of Contents
Up to --> Linux Tutorial

· The Computer Itself
· Basic Input-Output Services and the System Bus
· The Expansion Bus
· Memory
· The Central Processing Unit
· Motherboards
· Hard Disks
· Floppy Drives
· Tape Drives
· CD-ROMS
· Serial Ports
· Parallel Ports
· Video Cards and Monitors
· Modems
· Printers
· Mice
· Uninterruptable Power Supplies
· Cases
· The Right Hardware
· HW Diagnostics

Glossary
MoreInfo
Man Pages
Linux Topics
Test Your Knowledge

Site Menu
Site Map
FAQ
Copyright Info
Terms of Use
Privacy Info
Disclaimer
WorkBoard
Thanks
Donations
Advertising
Masthead / Impressum
Your Account

Communication
Feedback
Forums
Private Messages
Recommend Us
Surveys

Features
HOWTOs
News
News Archive
Submit News
Topics
User Articles
Web Links

Google
Google


The Web
linux-tutorial.info

Who's Online
There are currently, 254 guest(s) and 1 member(s) that are online.

You are an Anonymous user. You can register for free by clicking here

  
Linux Tutorial - The Computer Itself - Motherboards
  ARM Processors ---- Hard Disks  


Motherboards

Even if you buy pre-configured computers, you should still consider what kind of motherboards you are getting. It is very common today to find a number of the devices, which were formally expansion car, are now integrated into the motherboard. In many cases, the motherboard is smaller and therefore the total cost is reduced. However, this means if you wish to use something other than what indeed motherboard manufacturer has provided for you, you'll need to spend additional money as well as needed away to disable the device on the motherboard.

The reason the motherboard becomes smaller is that it can "get away with" having fewer expansion bus slots. Since the hard disk controller, for example, is integrated into motherboard, you do not need to use an expansion slot for. If this were a controller for IDE drives, you are less likely to want to buy one your own. However, if the SCSI host adapter is built and, you want to use something more powerful than the one which is provided, have to take up of the main expansion slots with the additional SCSI host adapter.

Another problem motherboard design brings with it is the placement of the integrated controllers. In some cases, I have found the plugs for such devices stuck between the expansion slots. While this does a great job of saving space, it makes it extremely difficult to access the pins. The only way to connect the cable to the pins was to remove all of the cards. However, you had to be extremely careful when ypu put the cards back in so as not to pull a cable off of the pins. Although it is unlikely you will be changing expansion cards every day, the headache and wasted time often negates any benefit of having paid $10 less for the motherboard.

Most were motherboards which I have encountered, with three PCI slots and at least three ISA slots. Some come with either an addition PCI or ISA slot, while some have an AGP slot. However, you can expect to have at least six expansion slots makes between PCI and ISA.

One thing you need to be careful about when shopping for motherboards is whether or not they support your chosen CPU. People do not often have a CPU before they have the motherboard (although I did once), you may have decided on a particular CPU before you buy it and the motherboard.

The days are gone in which you could simply bought a "PC motherboard" and expected to work with your CPU. The technology is changing so fast and there are so many different kinds of CPUs on the market, you need to be absolutely sure the CPU is compatible with the motherboard. Most of the motherboard manufacturers have Web sites with a compatibility matrix. You can find out which CPUs are supported and which clock speeds.

Sockets

One thing to consider when buying in motherboard for your CPU is where you are going to plug in that CPU. Not all CPUs are alike and non-all sockets for the CPUs are alike. As of this writing, nine different socket types (0-8) have been defined.


Socket Designation


Number of Pins 


Pin Layout


Voltage


CPU


OverDrive Processors


0


168


In line 


5V;


486DX 


DX2, DX4 



169 


In line 


5V 


486DX, 486SX 


DX2, DX4 



238 


In line 


5V 


486DX, 486SX, DX2 


DX2, DX4, Pentium 



237 


In line 


3V or 5V 


486DX, 486SX, DX2, DX4 


DX2, DX4, Pentium 



273 


In line 


5V 


60 and 66 MHz Pentium 


Pentium 



320 


Staggered 


3V 


Other Pentium 


Pentium 



235 


In line 


3V 


DX4 


Pentium 



321 


Staggered 


3V 


Other Pentium 


Pentium 



387 


Staggered 


3V 


Pentium Pro 


Pentium Pro 

There area several things to note about this table. First, There was never an officially designated socket 0, but Intel made a line of socket for 486 OverDrive processors which followed the Socket 0 design.

Second, the difference between an in-line and staggered pin layout is simply whether or not the pins line up in different rows.

The inner 169 pins of Socket 2 match those of socket 1, so you can simply plug in a CPU that is normally intended for Socket 1. The only difference is that the outer pins are open.

You will see that Socket 3 is the same size as Socket 2, but has one pin missing and the "keying pins" are in different place. It supports CPUs with either 3V or 5V and the rearranged keying pins help prevent someone from accidentally putting a 3V CPU into a 5V machine.

Socket 4 was for the first Pentiums, but is no longer used. It was followed by the Socket 5, which had a staggered pin layout. Socket 6 had a similar layout to sockets 2 and 3, but was only able to handle the 486DX4.

Finally, we get to Socket 7, which is currently the most common for Pentium based machines. The Pentium Pro CPUs fit into Socket 8.

 Previous Page
ARM Processors
  Back to Top
Table of Contents
Next Page 
Hard Disks


MoreInfo

Test Your Knowledge

User Comments:


You can only add comments if you are logged in.

Copyright 2002-2009 by James Mohr. Licensed under modified GNU Free Documentation License (Portions of this material originally published by Prentice Hall, Pearson Education, Inc). See here for details. All rights reserved.
  
Help us cut cost by not downloading the whole site!
Use of automated download sofware ("harvesters") such as wget, httrack, etc. causes the site to quickly exceed its bandwidth limitation and therefore is expressedly prohibited. For more details on this, take a look here

Login
Nickname

Password

Security Code
Security Code
Type Security Code


Don't have an account yet? You can create one. As a registered user you have some advantages like theme manager, comments configuration and post comments with your name.

Help if you can!


Amazon Wish List

Did You Know?
You can choose larger fonts by selecting a different themes.


Friends



Tell a Friend About Us

Bookmark and Share



Web site powered by PHP-Nuke

Is this information useful? At the very least you can help by spreading the word to your favorite newsgroups, mailing lists and forums.
All logos and trademarks in this site are property of their respective owner. The comments are property of their posters. Articles are the property of their respective owners. Unless otherwise stated in the body of the article, article content (C) 1994-2013 by James Mohr. All rights reserved. The stylized page/paper, as well as the terms "The Linux Tutorial", "The Linux Server Tutorial", "The Linux Knowledge Base and Tutorial" and "The place where you learn Linux" are service marks of James Mohr. All rights reserved.
The Linux Knowledge Base and Tutorial may contain links to sites on the Internet, which are owned and operated by third parties. The Linux Tutorial is not responsible for the content of any such third-party site. By viewing/utilizing this web site, you have agreed to our disclaimer, terms of use and privacy policy. Use of automated download software ("harvesters") such as wget, httrack, etc. causes the site to quickly exceed its bandwidth limitation and are therefore expressly prohibited. For more details on this, take a look here

PHP-Nuke Copyright © 2004 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Page Generation: 0.08 Seconds