*updating* 8088's

Doc Shipley doc at mdrconsult.com
Wed Nov 21 00:55:54 CST 2007

Chuck Guzis wrote:
> On 20 Nov 2007 at 23:45, Doc Shipley wrote:
>>    Umm, if you're talking about the all-in-one Model 25 PS/2, I gave a 
>> 386 Model 25 to somebody on this list a couple of years ago.  No 
>> upgrade, that's how it was manufactured.  IIRC it had 4MB onboard and 
>> took one SIMM up to 8MB for a total of 12mb.
> You're right!  There was a 25XT with the 8086, the 25 286 with a 
> 80286 and the 25SX with a 386SX and room for 12MB memory.  There was 
> also a planar upgrade 7386 for the XT and 286 that had a 386SLC-20 
> CPU.   According to the same web page, Reply Corp also made a planar 
> upgrade board with a 486DX4-100.

   So, here's the question I forgot to ask - how many PS/2 models had 
ISA slots?  That 25SX did, but that's the only one I've seen.


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