Anyone have a PC/XT MFM controller? (was:Adaptec HD controller access?)

From: Jason Willgruber <roblwill_at_usaor.net>
Date: Thu Nov 5 22:23:31 1998

O.K. Now that I found out a bit about the controller, I've found that I
have a slight problem:

1.) The Adaptec 2070 is an RLL controller
2.) The Seagate ST-506 5MB HDD is an MFM HD.
3.) Even if the card was MFM, I really don't feel like doing anything in
hex.

Now for the questions:

1.) Does anyone have a spare PC or XT MFM HD controller laying around? If
you do, what would you want for it (please send me a personal email). I do
agreee that the WD controllers are more direct, but any controller that'll
work should be fine.

2.) How do I get an external floppy to work with the XT? I have a cable
and P/S salvaged from a 4869 (think that's the model #) IBM drive (case and
drive are long gone) connected to a full-height IBM drive. I have the 4869
cable connected to the port on the floppy controller. Thing is, it dosen't
work. Do I have to change a jumper on the controller board, or do I need
to change the DIP settings on the M/B (If I need to change DIP's, just tell
me, and I can check the setting list on IBM's site).

3.) Anyone have an external TRS-80 disk box (with P/S)? It dosen't
necessarily need to have a drive in it, because I want to use it to house
the IBM drive in (I was thinking of using a Disk II box, since it would
probably match better, but they don't have a P/S).

ThAnX,
>
> Ding ding ding!!!
>
> Hold on!
>
> I got the info off the HD bible and I found what we need to know:
>
> Most WD, SMS/OMTI use C800:5
> few did use C800:6
>
> But the Adaptec 8 bit card use weirdest way to do LLF process:
>
> C800:CCC
>
> and you have to input the needed info in hex.
>
> Honestly, I prefer WD 1:2 or 1:3 controllers, the good ones are
> XT-GEN kind.
>
> Jason D.
>
> PS: How did I know something is still wrong because I was been there
> before. Oh, those 8 bit adaptec MFM cards have highest failure rate!
> email: jpero_at_cgocable.net
> Pero, Jason D.
Received on Thu Nov 05 1998 - 22:23:31 GMT