#Q105S jumper settings
14 messages in this thread
Help!
I wan to add an internal Quantum drive to my Amiga 3000. I have a bare
Q105S without docs. CAn anyone help me figure out the jumper settings?
The are two sets of three jumper pins. Lookng at the circuit board, with
the 50 pin & power connectors toward me, the jumper pins are located in the
lower right corner… one set above the other.
The top set has the middle pins (SS) connected (with a jumper that looks
different than other jumpers I've seen), with pins SS & WS open.
The bottom set has jumpers across pins A2 & A1 with A0 open.
Is that top jumper the termination resistor pack? If not, where is it and
what does it look like?
I need to know how to set the jumpers for a SCSI id different from the
Q50LPS that came installed in my machine… can someone give me the various
jumper settings?
whew! Thanks for your help.
– Whapp!ng from the North Coast Michael
Michael,
The A2,A1,A0 jumpers set the SCSI address for the drive. From your
configuration, you have address 6. That is the default config as shipped by
Quantum. The address is in binary where the jumpers have these values:
A2=4 A1=2 A0=1
I usually make the second drive unit 3 by moving the A2 jumper to A0.
The internal drive is probably already set to 6. You can use the HDtoolbox
program to check. The other two jumpers are a self test & wait for spin.
Those should be OK in the factory setting.
The terminating resistors are right next to the 50 pin SCSI connector.
There are 3 of them. They are (SIP) single-in-line packages which sort of
look like flattened centipedes. They are also socketed for easy removal.
Make a note of their orientation before removing them, there's a dot on one
end of the terminator pack.
Jim
Jim:
Everything you described checks out, and I even understand it! 🙂
I can't tell you how much I appreciate your quick response and help. You
just "saved the day" for me. Guess that realy does make you the "Man of
Steele" (Sorry… couldn't resist).
Thanks again!
– Whapp!ng from the North Coast Michael
Michael,
Glad to help. I get lots of good news and stuff here all the time. So I
like to return the favor when I can. My fannish cronies from college used
to call me the 'Man of Steele' now and then. Of course now, when I save
them from a 'close shave' they call me 'Remmington'. (Sorry *I* couldn't
resist).
BTW, The guy I work for sold a 3000 to an old school pal from Cleveland. Do
you have a favorite local dealer? I'd like to be able to refer him to
someone local if a problem comes up that we can't handle from up here in
Michigan. When I saw your signature I was reminded of him. His company is
'North Coast something-or-other'.
Jim
> 'North Coast something-or-other'.
he he he… that narrows it down to 5 or 6 thousand companies 🙂
I usually use Somers Photo 216-321-2277 1875 S Taylor. They are really
the only dealer in town (can you believe that, in county with a population
over 1 million people!). They're pretty good people… usually I just ask
for their tech guy… his name is Kirby, and he should be able to help your
friend out with any problems.
– Whapp!ng from the North Coast Michael
I finally remembered the company name, it's 'North Coast Envrionmental'.
They use the 3000 with XCAD to design waste management systems.
Anyway, thanks for the recommendation on the store. I've filed it and
will pass it along to the chief. We try to handle all the support
ourselves, but in case of emergency it's nice to have a 'Plan B'.
-Jim
Jim:
I'll have to look up North Coast Environmental and check out how they use
the Amiga…
I've got another question for you… the Quantum 105 hard drive I'm
installing has a 50 pin connector but did not come with a ribbon cable to
connect it to the second connector on the 3000 HD ribbon cable… where can
I get this ribbon connector… no in Cleveland seems to have one!
– Whapp!ng from the North Coast Michael
Michael,
That cable is more or less a standard item. I'm surprised you can't find
one. Then again, I've never tried to find one before I worked at a store
that keeps them around. 🙂 I keep a bag o' connectors in the shop and make
them up as I need them. You might try some of the Apple dealers or clone
miesters in the area. There are probably dozens of places in Computer
Shopper that would carry it. I also recall from some previous talk here on
the nets that Radio Shack has them available as a special order item.
Jim
Jim:
I kind of thought it would be a pretty standard item, but 'no go' at either
of the two LARGE Mac delaers here… I stopped by Cumulus Corporation
today, adnn they were kind enough to give me a cable.
– Whapp!ng from the North Coast Michael
Michael,
Well, that takes care of that…. glad you found one. Strange thing is….
I've got to do the same thing next week. Putting a 105 Quantum into a 3000
that is. The guy's getting an IV 24 too. (turning green!)
Jim
Way off the subject but if that's the Taylor in Cleveland Heights, I used
to live near there. On Fairmount between Queenston and Kingston, 'bout a
block from Fairmount & Taylor. I think we had a 321 phone number. Ah,
the good old days…
Mike
Mike:
I used to live near there also… 3095 Essex just off of Lee. I moved to
the 'burbs about four years ago when I got married.
Isn't it Merle Polis that calls Clevaland Heights "The Independant Nation
Of Cleveland Heights"? 🙂
– Whapp!ng from the North Coast Michael
Michael,
My Q105S came with the same jumper configuration as yours, with EP jumpered
and SS and WS open. I don't know what they do but I left them alone. A0, A1
and A2 are for setting the SCSI address. The address is the sum of the
values of the jumpers when installed where A0 = 1, A1 = 2 and A2 = 4. To
get a SCSI address of 3, install jumpers for A0 and A1. The terminator
resisters are the three long thin things in sockets running parallel to the
SCSI connector. Note that these are polarised. Hope this helps.
Ron
Ron:
Thanks very much for the information. The response to a 'ry for help' here,
as usual, has been great.
– Whapp!ng from the North Coast Michael