William's Microchannel Adapter Information

The following links lead to pages I have either created from scratch, or added information to. These pages cover a variety of Microchannel-bus option or expansion cards that are used in IBM PS/2 computers (Models 50 and higher) or some of the few clones that are floating around. You may also wish to view my computer collection.

Before using any information presented here, read and understand the notice and disclaimer section below. If you are selling an item discussed here on eBay or anywhere else, read the "Information for eBay Sellers" below.

At the very least I have provided an adapter outline and a set of component IDs. Whenever I have more information or files relating to the item in question, I have placed such files online. Some of this information does not exist elsewhere.

If you can't find something or have questions, please don't hesitate to ask. Some pages are slightly (or more!) broken from a disk failure that took place long ago. For a variety of reasons, some good and many not, I've never really repaired all the damage this did.

NEW! 04/07/2019 - The Xionics XIP-D page has been updated with a great deal of information about what it is actually used for. Thanks to Jeff White for supplying this information.

04/29/2018 Minor maintenance updates were made to the CD Burning and M-ACPA pages. (These primarily address issues with link rot.) At some point, I may create a "news" page, if only to archive the older entries below.

03/12/2016 The Cabletron E3xxx series pages have been unearthed after spending quite some time unlinked and forgotten! At least I got the drivers before the darkness fell. Updates are pretty sporadic these days, I'm not doing as much with Microchannel as I once was. And there are still some pages that don't work because I'm a professional lazy-butt.

01/27/2013 - While some may have considered these pages to be in a state of slumber (and I'm not saying they are far wrong), I do still run Microchannel machines to this very day. There's a lot of stuff I should probably do here, but in the meantime, check out the updated Rancho Technology RT-1000MC page if you need the option diskette.

At some point I need to repair the Madge TR page and the IBM 486SLC2 upgrade page. I also have some files pertaining to the Thomas-Conrad TC4046 adapter. As always, I am interested in any information, software or actual Microchannel hardware you may have.

01/14/2010 - The Thomas-Conrad TC4046 page is finally up. Not only is a card outline available, but so are the manual and pocket guide (both in PDF format). I am desperately seeking the drivers and supporting software for this card! Do you have them? Drop me a line!

I am also aware of the fact that at present, there are some broken pages and links here. I haven't had the time to find and fix everything, but I am aware of just about all of the damage.

Communications (Network Cards, Modems, Serial/Parallel Ports, Misc Communications)
Memory Expansion

Disk & Storage Controllers
Other Cards

Processor Upgrades
IBM 486SLC2 33/66 MHz

Other Stuff

CD Burning on a PS/2 (it's been around for a long time, I just never linked it from here)

More projects will be completed as I find the time to do them. Please note that I only document hardware. I don't presently have the skills to write device drivers or software for your adapter. If you don't see a card here, or if you have any information at all regarding something shown here, drop me an e-mail. You will be credited for your subsmission if you wish.

Notice & Disclaimer: All information on this site is provided on a "best effort, use at your own risk" basis. What is presented here is presented in good faith, and in the hope that it will be useful. I haven't tried everything available for download here, cannot claim that I know everything (or anything at all) about the hardware, and I haven't had a chance to test it all. Even if I say it works, please realize that your computing environment could be very different from mine. Not all pages or information are complete! Unless otherwise noted, information presented here for your use is the result of personal experimentation on the hardware at hand. As such, this information has the potential to be incorrect or damaging to your hardware. If you're not sure--then don't do anything here! I disclaim any and all responsbility for your actions or the quality of information presented here to the fullest extent possible under law.

Consult your manuals or seek assistance from trained service personnel or the manufacturer of your hardware, if they are still in business. I cannot accept any liability or claim arising from your use of this information. Damage to hardware caused by this or any other source of information is YOUR responsibility and YOUR problem. If you still don't know, then ASK. I can't guarantee an answer, but I'll try to find one. Please realize that I have not worked for any of the companies that made these products.

Copyright notices that appear on the adapter outlines I have drawn concern only my rendition of the item in question, and DO NOT cover any aspect of the design of the item. They are presented to help people in possesion of similiar boards to determine what they have and how to use it.

Datasheets that may be provided for download are the copyrighted property of the company who wrote them. They are provided here as a convenience only and to give an idea of how and where a part is used in a given card design. It is not the intention of this page to undermine the rights of IC manufacturers and designers or to violate copyright law in any way, shape or form. Again, no liability from the use of these datasheets or other techinical documentation can be accepted on my part. These are provided "as is" and with all faults. You use these data sheets or other information AT YOUR OWN RISK!

You are--as with most pages on this site--encouraged to take complete copies for redistribution in their original format and presentation with all notices, images and supporting files intact. You may redistribute these pages in their entirety so long as no fee is charged for access to this information. This excludes reasonable connect time, media or duplicating fees. You may also use portions of these pages that I have written or created (text and images, unless otherwise noted) in other projects. However, other projects may not be for-profit projects. You must provide credit for any items used from this collection of information.

Information for eBay Sellers (and all other sellers with goods that are described on these pages)

eBay sellers that are selling or auctioning an item described on these pages are welcome to link to the relevant page for the item they are selling. Please DO NOT copy and paste text or images from these pages in your listing without getting my written permission. DO NOT link to images on this server from your auction listing. While it is recommended that you provide a buyer or winning bidder with a link to the information presented here, you may provide printed copies of this information under the following circumstances and conditions:

These pages are Copyright 2005-2019 by William R. Walsh. Some Rights Reserved. Please see the top level page of this site for detailed information about your rights to use or reuse my original material.