>http://cgi.ebay.com/VINTAGE-IBM-PS2-PS-2-MODEL-70-PC-COMPUTER-CLEAN-386_W0QQitemZ5105726548QQcategoryZ74946QQrdZ1QQcmdZViewItem<
Ends Oct-02-05 19:26:06 PDT
-- 
Reply to ohland@charter.net

On Tue, 27 Sep 2005 20:05:07 -0500, Louis Ohland <nullnvoid@charter.net> wrote:

>> http://cgi.ebay.com/VINTAGE-IBM-PS2-PS-2-MODEL-70-PC-COMPUTER-CLEAN-386_W0QQitemZ5105726548QQcategoryZ74946QQrdZ1QQcmdZViewItem<
> Ends Oct-02-05 19:26:06 PDT

This thing won't run an OS/2 1.0, 1.1 would it?  It requires a 286?  If so guess I'll be waiting for another 50Z to bubble up.  :\

--Daniel

Hi!

> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=%205105726548

I think it becomes obvious when a person looking at the listing also has one
of those coffee cans (look in the picture background) that he has *far too
much stuff*.

Otherwise a very nice looking computer. I find the dual floppy setup
especially handy.

William

On Tue, 27 Sep 2005 21:51:00 -0500, William R. Walsh <newgroups1@nojunquemail.walshcomptech.com> wrote:

> Hi!
>
>> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=%205105726548
>
> I think it becomes obvious when a person looking at the listing also has one
> of those coffee cans (look in the picture background) that he has *far too
> much stuff*.
>
> Otherwise a very nice looking computer. I find the dual floppy setup
> especially handy.
>
> William

What where the model 70s?  Where they a larger higher-end version of the model 50?  Kind of like the 56/57, 60/80, and 76/77?  There weren't any 286 Model 70s where there?

--Daniel

Hi!

> What where the model 70s?

They were a 386-based MCA computer. A really late model built around the
25MHz planar was a 486 and from what I have heard, it is rumored to have
been the first 486 computer offered on the market.

Finding a Model 70 486 is difficult. There are not a lot of them around.

> Where they a larger higher-end version of the model 50?

Sort of. The Model 70 was built around a 386 (or 486, see above) CPU. There
were 16, 20 and 25MHz versions made. This machine offered two 32 bit MCA
slots and one 16 bit MCA slot. Gone was the hidden "fourth" slot as found on
the 50/50Z and used to connect the disk controller. (This is one area where
the 50/50Z has an advantage over the 70...that hidden slot makes using your
own disk controller much easier and places less limits on the expandability
of the system with the remaining three slots.)

Larger disks were also available...the 70 shipped with choices of 60, 80,
120 and 160MB DBA ESDI drives. The power supply was also larger (132 watts
as opposed to 94 for the 50/50Z) and somewhat better made.

There were no 286-based Model 70s.

If you have an interest in finding one, a Model 70 is a workhorse of a
computer...solidly built and a decent performer with some good upgrade
options available.

William

In article <5Zp_e.372396$_o.310229@attbi_s71>,
"William R. Walsh" <newgroups1@nojunquemail.walshcomptech.com> wrote:
>
>Finding a Model 70 486 is difficult. There are not a lot of them around.

Were there ever any with 486 planars? As far as I recall, the 486 was an
option board ("Power Platform") that piggybacked on the 386 planar somehow.
I only ever saw one. I got to play with it because a piece of my code failed
on it, it ran faster than any machine I had tested on and exposed a race
condition.

-- 
Don Hills    (dmhills at attglobaldotnet)     Wellington, New Zealand
"New interface closely resembles Presentation Manager,
 preparing you for the wonders of OS/2!"
    -- Advertisement on the box for Microsoft Windows 2.11 for 286

"Don Hills" <black.hole.4.spam@gmail.com> wrote in message
news:1akODtgaXaMG092yn@attglobal.net...
> In article <5Zp_e.372396$_o.310229@attbi_s71>,
> "William R. Walsh" <newgroups1@nojunquemail.walshcomptech.com> wrote:
> >
> >Finding a Model 70 486 is difficult. There are not a lot of them around.
>
> Were there ever any with 486 planars? As far as I recall, the 486 was an
> option board ("Power Platform") that piggybacked on the 386 planar
somehow.
> I only ever saw one. I got to play with it because a piece of my code
failed
> on it, it ran faster than any machine I had tested on and exposed a race
> condition.

As I recall, IBM marketed a Reply planar upgrade for the Model 70 too. I'll
really have to reload my website there's an ALET reference for these IBM OEM
planars on there.
-- 
Regards,
        Tim Clarke (a.k.a. WBST)

On 9/28/05 1:36 AM, in article 5Zp_e.372396$_o.310229@attbi_s71, "William R.
Walsh" <newgroups1@nojunquemail.walshcomptech.com> wrote:

> Hi!
> 
>> What where the model 70s?
> 
> They were a 386-based MCA computer. A really late model built around the
> 25MHz planar was a 486 and from what I have heard, it is rumored to have
> been the first 486 computer offered on the market.
> 
> Finding a Model 70 486 is difficult. There are not a lot of them around.
> 
>> Where they a larger higher-end version of the model 50?
> 
> Sort of. The Model 70 was built around a 386 (or 486, see above) CPU. There
> were 16, 20 and 25MHz versions made. This machine offered two 32 bit MCA
> slots and one 16 bit MCA slot. Gone was the hidden "fourth" slot as found on
> the 50/50Z and used to connect the disk controller. (This is one area where
> the 50/50Z has an advantage over the 70...that hidden slot makes using your
> own disk controller much easier and places less limits on the expandability
> of the system with the remaining three slots.)
> 
> Larger disks were also available...the 70 shipped with choices of 60, 80,
> 120 and 160MB DBA ESDI drives. The power supply was also larger (132 watts
> as opposed to 94 for the 50/50Z) and somewhat better made.
> 
> There were no 286-based Model 70s.
> 
> If you have an interest in finding one, a Model 70 is a workhorse of a
> computer...solidly built and a decent performer with some good upgrade
> options available.
> 
> William
> 
> 



Hello,

  Here is a link to a company that is selling the 486 power platform upgrade
processor module (not cheap but available if someone really wants them).

http://www.codemicro.com/store/check_price.php?partid=905784

-CN

On Wed, 28 Sep 2005 01:27:43 UTC, "Daniel Hamilton" 
<daniel.nospam@cavs.msstate.edu> wrote:

-> On Tue, 27 Sep 2005 20:05:07 -0500, Louis Ohland <nullnvoid@charter.net> wrote:
-> 
-> >> http://cgi.ebay.com/VINTAGE-IBM-PS2-PS-2-MODEL-70-PC-COMPUTER-CLEAN-386_W0QQitemZ5105726548QQcategoryZ74946QQrdZ1QQcmdZViewItem<
-> > Ends Oct-02-05 19:26:06 PDT
-> 
-> This thing won't run an OS/2 1.0, 1.1 would it?  It requires a 286?  If so guess I'll be waiting for another 50Z to bubble up.  :\
-> 

Daniel

The 70 is listed as supporting OS/2 1.1 Standard Edition and Extended 
Edition in the availability announcements, but its not mentioned in 
the OS/2 1.0 announcement.  

I just tried installing OS/2 1.0SE on the 50Z (8550-031), with no 
success.  OS/2 1.0EE did install successfully though.

Mark  



-- 
From the eComStation of Mark Dodel

 http://www.os2voice.org
 Warpstock 2005, Hershey, PA, Oct 6-9, 2005 - http://www.warpstock.org

Turn your head to one side and cough...

The 486 processor card is worthless unless you have the base 25MHz
planar (386 -Axx) and the 486 BIOS ROMs.

   Here is a link to a company that is selling the 486 power platform
upgrade
> processor module (not cheap but available if someone really wants them).
> 
> http://www.codemicro.com/store/check_price.php?partid=905784
> 
> -CN

-- 
Reply to ohland@charter.net

Hi!

That's a "well known" purveyor of goods around here...Code Micro/IT
Equipment Express posts a large number of eBay auctions with simply
astronomical prices for goods. Usually these auctions bring some
amusement into the group.

One has to wonder to whom they sell this stuff. There must be someone
out there who will pay for it--otherwise I don't see how they would
still be in business.

At least what you're buying is advertised as not being a "third party
knock off or fake"...which for the price it had better not be! :-D

William

Mark Dodel wrote:
> The 70 is listed as supporting OS/2 1.1 Standard Edition and Extended 
> Edition in the availability announcements, but its not mentioned in 
> the OS/2 1.0 announcement.  
> 
> I just tried installing OS/2 1.0SE on the 50Z (8550-031), with no 
> success.  OS/2 1.0EE did install successfully though.
> 
> Mark  

Seems like 1.0 was either "highly specific" with what hardware it was 
meant to go on, or it was really buggy. :)

--Daniel

Louis Ohland wrote:
> Turn your head to one side and cough...
>
> The 486 processor card is worthless unless you have the base 25MHz
> planar (386 -Axx) and the 486 BIOS ROMs.
>
>    Here is a link to a company that is selling the 486 power platform
> upgrade
> > processor module (not cheap but available if someone really wants them).
> >
> > http://www.codemicro.com/store/check_price.php?partid=905784
> >
> > -CN
>
> --
> Reply to ohland@charter.net

Hello,

   I knew about having the 8570-Axx planar but not about the BIOS.  I
thought you could just remove the 386 module and replace it with the
486 one.  Well, it's good to know that info (in case I ever bid on one
of those in the future).

-CN

Louis Ohland wrote:
> Turn your head to one side and cough...
>
> The 486 processor card is worthless unless you have the base 25MHz
> planar (386 -Axx) and the 486 BIOS ROMs.
>
>    Here is a link to a company that is selling the 486 power platform
> upgrade
> > processor module (not cheap but available if someone really wants them).
> >
> > http://www.codemicro.com/store/check_price.php?partid=905784
> >
> > -CN
>
> --
> Reply to ohland@charter.net

Hello,

   I knew about having the 8570-Axx planar but not about the BIOS.  I
thought you could just remove the 386 module and replace it with the
486 one.  Well, it's good to know that info (in case I ever bid on one
of those in the future).

-CN

Louis Ohland wrote:
> Turn your head to one side and cough...
>
> The 486 processor card is worthless unless you have the base 25MHz
> planar (386 -Axx) and the 486 BIOS ROMs.
>
>    Here is a link to a company that is selling the 486 power platform
> upgrade
> > processor module (not cheap but available if someone really wants them).
> >
> > http://www.codemicro.com/store/check_price.php?partid=905784
> >
> > -CN
>
> --
> Reply to ohland@charter.net

Hello,

   I knew about having the 8570-Axx planar but not about the BIOS.  I
thought you could just remove the 386 module and replace it with the
486 one.  Well, it's good to know that info (in case I ever bid on one
of those in the future).

-CN

OS/2 up to 3.x will work on a 8570 with 386-20mhz and 12-16mb ram. i do
not yet know of 4.x on it.
-John

Hi Chris,
> I knew about having the 8570-Axx planar but not about the
> BIOS. I thought you could just remove the 386 module
> and replace it with the 486 one.  Well, it's good to know
> that info (in case I ever bid on one of those in the future).
     And actually the system would be an 8570-Bxx with the 486 parts on
it. Same designation as the "System Board Upgrade" from IBM (rebadged
Reply planar). It's got a 486DX socket, but solderpads for the POD
(83MHz, because base planar clock is 33MHz).
                  David
                  David@IBMMuseum.com

"IBMMuseum" <David@gilanet.com> wrote in message
news:1127948811.858830.208510@g49g2000cwa.googlegroups.com...
> Hi Chris,
> > I knew about having the 8570-Axx planar but not about the
> > BIOS. I thought you could just remove the 386 module
> > and replace it with the 486 one.  Well, it's good to know
> > that info (in case I ever bid on one of those in the future).
>      And actually the system would be an 8570-Bxx with the 486 parts on
> it. Same designation as the "System Board Upgrade" from IBM (rebadged
> Reply planar). It's got a 486DX socket, but solderpads for the POD
> (83MHz, because base planar clock is 33MHz).

Or 8570-Rxx in EMEA countries.
-- 
Regards,
        Tim Clarke (a.k.a. WBST)