🚀 go-pugleaf

On 26 Aug 1995, Joanne Dow wrote:

> Date: 26 AUG 1995 21:32:14 GMT 
> From: Joanne Dow <jdow@BIX.com>
> Newgroups: comp.sys.amiga.tech, comp.sys.amiga.hardware
> Subject: Re: SCSI HELP!!! 
> 
> In article <Pine.AMI.3.91.950823223458.148012408A-100000-100000-100000@amiga1.eskimo.com>,
>    "David J. Bakeman" <dbakeman@eskimo.com> wrote:
> >Hi I'm still having problems getting the CDrom I bought to work with my
> >A2000 :<(
> >
> >Setup:
> >      A2000 with Derringer 030 25Mhz accel running ADOS 3.1
> >      Hardframe SCSI card
> >      MB 8Mbyte ram board
> >      Maxtor 345Mbytes internal SCSI
> >      Iomega ZIP drive
> >
> >
> >The story:
> >
> >I bought a CDrom from Mac wharehouse a coupla weeks ago.  When I tried to
> >connect it to my computer it seemed to interfere with the Maxtor.  So I
> >spent many frustrating nights juggling SCSI id's with no luck.  Then I
> >decided to confirm that the CDrom worked!  I took it to work and connected
> >it to my Mac and it did :<(  The good news is the drive works the bad news
> >is the problem is my Amiga :<(
> >
> >When I connect the CDrom (SCSI ID 6 terminated) to my ZIP (SCSI ID 5
> >non-terminated) to my system (Maxtor internal SCSI ID 0 terminated (its on
> >the other side of the controller)) I get checksum problems on my boot
> >partition on the Maxtor!  If I reboot a coupla times the Maxtor no longer
> >shows up in the list of bootable devices!
> >
> >
> >Anybody got any ideas????
> 
> Lots of ideas. What version of the HardFrame firmware are you using, for
> starters?
> 
  Rom v 1.9 I'm sorry I don't remember the version of RDPrep.
> Second the HardFrame is terminated on the controller. Have you removed those
> terminators? They are immediately adjacent to the SCSI connector pins.
  Yes I have because the manual says that both ends of the SCSI bus must be
  terminated and nothing else.
> 
> If you are using the (yuck) 25 pin header for the external drive are you running
> 25 wire cable to the drives and expecting it to work? I can virtually guarantee
> that it will not with a HardFrame. That is a fast controller coupled with a
> rather demanding drive, the Maxtor. Inproper bus termination and those idiot 25
> wire cables *WILL* cause the kind of errors you are seeing, inspite of what some
> shrill <people> in this newsgroup might say.
  The Maxtor is on the 50pin cable internally the ZIP drive and the CD have
  been on the 25 pin.  I followed the instructions in the manual and used a
  26 pin header with a 25 wire cable wired to a 25 pin connector attached to
  an expansion slot.
> 
> Here I am speaking with direct experience with the HardFrame firmware and the
> care and feeding of a pair of them in my hypertrophied A2000. (At one time I had
> 7 peripherals on one card. *THAT* took some doing to make it work because of
> bussing problems.)
> 
  Should I wire things differently?  Maybe take the CDrom out of its case
  and install it internally on the 50 pin bus?
> >
> >THANKS!
> {^_^}     Joanne Dow, Amiga Exchange Editor on BIX
>           jdow@bix.com   The Wizardess
> 
  I REALLY REALLY appreciate the HELP!
> 
> 

-------------------
David J. Bakeman
dbakeman@eskimo.com
Seattle,  WA  98103