386 to 486

From: Lawrence Walker <lgwalker_at_look.ca>
Date: Mon Jan 22 13:09:46 2001

> On Sun, 21 Jan 2001, Jeff Hellige wrote:
> > Does anyone have any of the 386 to 486 upgrades that plug
> > into the 386DX socket, usually using the TI 486SLC? I know
> > Evergreen made such a beast, and in fact one just went up for sale
> > on eBay. Does anyone have one they'd like to part with?
> Did TI make a 486SLC too? I thought that was an IBM-exclusive design.

 This is from my PS2 D-B

Date: Wed, 11 Mar 1998 16:11:21 +0100
From: "Peter H. Wendt" <~phw_at_compunet.de>
Reply-To: ~phw_at_compunet.de
Organization: CompuNet? Hamburg

Hi !

>is it possible to pop something like a 486slc chip
>in a 8580-111?

Sure ... but it won't work :-)

The replacement-boards offered 486SX / DX mainly, the original
takes at least the "Blue Lightning" and other 486DLC-based chips.
The 486SLC is a 386SX-family processor and has only 16-bit
databus - so
it won't match the physical specs of the 32-bit Mod. 80 planar
further adaption.
n simple: No way.

Very friendly greetings from Peter in Germany
 - Please respond to : peterwendt_at_aol.com -


From: Jerry Dumer <jhdumer_at_arn.net>
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Texas intruments Upgrade ??
Date: Wed, 10 Jun 1998 20:23:26 -0500

Just plug it in. You will get about 10-20% increase. If you enable the
on-chip cache, maybe more. Cache requires a driver in the
If you don't have one, holler, I'll email you a copy. I doubt it would
be worth your time on crystal changes.



Monza wrote:
> I recently aquired a Texas Instruments TX 486DLC-40BGA
> It was an upgrade for a 386 (installed originally on a Clone
MBoard) or so
> I was told.
> I was wondering would this chip work in either a 8580-041 or a
8573-121 ??
> and if it would run, what kind of benifit would I see ?
> BTW would any Upgrades be needed to the Ps/2 Mboard
> crystals, etc ?


Here's some other upgrades

From: awilli7333_at_aol.com (AWilli7333)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: 286-486 upgrade
Date: 8 Apr 1998 02:10:46 GMT

>I am wanting to upgrade my old ps/2 50z to a 486... for the heck
of it.
>kinda a neat extra computer to have around.. at any rate, has
anyone had
>any experience with this upgrade.. and how did it turn out for you?
>if you want, feel free to email your responses to
Hi Dave, I have used several different up grade chips on these
machines , The
"make it 486" with a math co-processer will help your computer
immensely. You
can run windows 3.1 with flair. Evergreen and cryrix also make
processors. It is the easiest up grade you can do. Just pop out
the 286 chip
, being very careful not to damage the chip seat or socket , install
the new
chip . Some companies have disk set up you will run to set the
cache. Also
Knigston makes a upgrade processor. You should be able to find a
386 upgrade
for about 20-30.00 or a 486 upgrade for less than 50.00.
Neointeractive has
whole mother boards with 486 processors and 8 megs of ram for
under 100.00. If
you don't find what you want please e-mail me I may have some
486 chips left.



Reply to:
Received on Mon Jan 22 2001 - 13:09:46 GMT

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