#: 20380 S5/OS9 Users Group
17-Sep-94 12:35:00
Sb: #20375-#OS/9 won't work - HELP!
Fm: David Breeding 72330,2051
To: Jean Gagnon 72164,2020 (X)
> I have all kinds of disk drives (3 inch! - not 3 1/2) but only have one
> controller (radio Shack) - does Radio Shack still sell the cables to let
Not sure about 3" drives.. I'm not really up on exactly what is what on the
various drives. Hopefully, someone here can enlighten you better than I.
Re: cables. you Might be able to special order them but, if you want to do a
lot with OS/9, you would be better off to set it up for double sided drives, it
will give you more capacity (Well.. of course it would ). I'm not sure, if
the drives are RS, they are probably actually double-sided, but the cable is
wired goofy so it will work 4 single-sided drives.. I believe you have to
modify the power supply board, I'm not sure, and the cables are easy to make..
all you need is a 34-wire flat cable, a standard 34-wire edge card connector
for the controller end, and the same for the 5 1/4 drives. The 3 1/2 drives
require a different connector (not sure about the 3's). However, all the 3
1/2's I've fooled with have #1 pin on opposite side than the 5 1/4's, so for
these, if you make up the cable, have them facing the opposite side than the
connectors for the 5 14's and then twist the cable. Oh, most coco cables don't
have the twisted pair found in the PC cables.
> you hook disk drives together? I get I/O errors all the time with the 5
> 1/4... Does that mean there might be problems with the drive, or is it
> just my stupidity???? :-)
I doubt it's you.. It could be the connections are dirty on the controller,
some cleaning might help.. Also, the drive COULD be slightly out of alignment.
Do you have 2 drives or 1? If 2, are errors on both drives?
-- David Breeding --
CompuServe : 72330,2051
Delphi : DBREEDING
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