21 Nov
2007
21 Nov
'07
6:47 a.m.
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.
The same web page makes note of the "EduQuest" models that look like
a 25, but apparently weren't sold as such. The top model can
accommodate a Pentium Overdrive CPU.
http://www.walshcomptech.com/ps2/m25stuf.htm
Cheers,
Chuck