The PS/2 line wasn't microchannel until you went into the model 50 and higher
numbered models, and all the machines were plug in bus, no cabled busses. The
ISA versions had a HDD controller on them but it would auto disable when
another stock type controller was plugged into a card slot. We run a 30-286 on
the toekn ring network where I work as a disk type workstation that also has an
external 5.25" floppy drive and it works great. I'm trying to talk them into
swapping it out for a 386 machine though.
Jason Willgruber wrote:
> The PS/2 Model 30=286 didn't have a cable going to the riser card in it,
> nor was it an MCA machine. It was an ISA machine, and The HD plugged into
> the motherboard via ribbon cable. I'm not even sure if it was an ESDI
> drive. I think it was just an MFM that had everything (including power) on
> one cable.
>
> -Jason
>
> ***********************************************
> * Jason Willgruber *
> * (roblwill_at_usaor.net) *
> * *
> * http://members.tripod.com/general_1 *
> * ICQ#-1730318 *
> * /0\/0\ *
> * > Long Live the 5170! *
> * \___/ *
> ************************************************
>
> ----------
> > From: John Rollins <rexstout_at_uswest.net>
> > To: Discussion re-collecting of classic computers
> <classiccmp_at_u.washington.edu>
> > Subject: RE: Classic != IBM AT
> > Date: Monday, November 02, 1998 8:26 PM
> >
> >
> > Hmm.. Would the 486 system I had a while back count? I forget who made
> it,
> > model A3000. 486DX/33 AMD CPU and FPU and some other chips were on a
> small
> > daughterboard that fit into a slot in the front of the computer, which
> > interfaced to an MCA slot... Now that's gotta be wierd for anything.
> > Closest thing to that I can think of is the hard drives IBM used in some
> > PS/2's that interfaced directly to the MCA bus(interface built in to the
> > drive's controller board with a cable going to the MCA riser card in the
> > Model 30-286 and maybe the 55sx too). That 486 was fun, wish I still had
> > it... :-|
> >
> > --------------------------------------------------------------
> > | http://members.tripod.com/~jrollins/index.html - Computers |
> > | http://www.geocities.com/Area51/Lair/1681/ - Star Trek |
> > | orham_at_qth.net list admin KD7BCY |
> > | ham-mac_at_qth.net Portland, OR |
> > --------------------------------------------------------------
> >
> >
Received on Mon Nov 02 1998 - 05:43:36 GMT