IBM 5161

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Fri Apr 4 18:37:00 2003

> > The ibm 5161 expansion box was designed for use with
> > the ibm pc.
>
> And presumably *only* the PC, ie not the XT.

It is documented as working (by IBM) on the XT and PortablePC...

> Not that I've found, just an 8-slot backplane which immediately loses a slot

Yes, that's what I'd expect. It's almost a totally passive backplane, but
there's a clock generator chip + crystal to generate the 14MHz 'osc'
signal (which is not taken from the main PC)_

> because one of them must be occupied by the receiving end of the expander
> interface that has to go in the 5150. There might be a BIOS in that
> interface though, I didn't really check that. The 5161 has a hard drive

There isn't...

> controller card in it as well as a Seagate monster that's probably only 5 or
> 10 meg.

Yep...

>
> > the card that connects to the ribbon cables that come
> > from the exp box goes into one of the pc's card slots.
>
> No ribbon cables, just an interface cable that's thicker than my thumb!

That's what all my expansion units have too...

-tony
Received on Fri Apr 04 2003 - 18:37:00 BST