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Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices"

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CasinosG4 wrote:
> I've just acquired an Adaptec 2903b SCSI card so I can borrow
> an old Nikon Coolscan to scan my transparencies into my G4
> which  will effectively become mainly a photographic resource.
>
> Checking out the G4 system, the Parallel SCSI section gives
> the  message "This system does not contain any Parallel SCSI
> devices"  with the 2903b, although with a 2906 card it
> recognises both the  card and the scanner.
>
> I've uninstalled the driver several times and checked the
> seating  of the card, and afterwards reinstalled the Adaptec
> 2906 driver  as it seems to be what Adaptec suggest when I
> search for a 2903  driver.
>
> i am getting the impression that the card is too old to work
> with 10.5.8 and is effectively scrap for my purposes. Could
> anyone confirm that or should I persevere trying to get it to
> work, in which case some suggestions would be appreciated.
> It's New Old stock, if you know what I mean, so I suppose it
> could actually just be faulty.
>
> I know it would be easier just to stick with the 2906, but
> that belongs in the G4 the Nikon is usually connected to,
> so that isn't an option as none of them belong to me.

The AHA-2903B and AVA-2903B are not supported at all in systems higher 
than 10.4.6 - and this only if you have upgraded upon an existing OS X 
10.3. In this case the original driver will be left in the system. From 
10.4.7 and up the driver will be removed and the 2906 will be installed 
as the only driver. This driver is the generic driver for 2903B and 
2906, but I've never succeeded getting it to work in a G4 - works fine 
in at B&W G3 running 10.3.x and 10.4.6.

The smallest card that will work with 10.4.7 to 10.5.8 is the AHA-2930CU 
or AVA-2930. The best SCSI card for 10.4.11 to 10.5.8 is the Adaptec 
AHA-2940U2B or AHA-2940UW. - I have a 2940U2B in my MDD running both OS 
9.2.2, 10.4.11 and 10.5.8 - all bootable systems.

Do remember that the SCSI unit must be powered on before starting up the 
computer - else it won't be registered in the system - unless you have 
Silverlining 6.4.x for OS X (meant for 10.3.x and 10.4.x, but works also 
with 10.5.8).

Note: The dual-firmware Mac/Win "Adaptec AHA-2940U2W Special Edition" 
/might/ work in 10.5.x, but I've only had troubles with this card on 
both a G4 QuickSilver Dual 1,8ghz and myh 1,25ghz MDD. Therefore I 
'downgraded' to the AHA-2940U2B...

Cheers, Erik Richard

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Erik Richard Sørensen, Member of ADC, <mac-daneRE@MOVEstofanet.dk>
NisusWriter - The Future In Multilingual Text Processing - www.nisus.com
Openoffice.org - The Modern Productivity Solution - www.openoffice.org
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" CasinosG4 <dmarshland@gmail.com> - 2014-03-05 11:11 -0800
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" me@home.spamsucks.ca (Király) - 2014-03-05 21:13 +0000
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" Laszlo Lebrun <lazlo_lebrun@googlemail.com> - 2014-03-05 22:32 +0100
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" ErikRS <mac-dane@is.invalid> - 2014-03-06 00:34 +0100
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" billy@MIX.COM - 2014-03-06 01:05 +0000
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" Michael Vilain <vilain@NOspamcop.net> - 2014-03-05 19:18 -0800
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" CasinosG4 <dmarshland@gmail.com> - 2014-03-06 01:00 -0800
  Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" CasinosG4 <dmarshland@gmail.com> - 2014-03-06 04:34 -0800
    Re: Adaptec SCSI card 2903b "This system does not contain any Parallel SCSI devices" billy@MIX.COM - 2014-03-06 16:01 +0000

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