[Info-vax] Alphaserver 1000A with external BA356 enclosure - 16 bit issues

Hans Bachner Hans at Bachner.priv.at
Thu Oct 13 18:05:22 EDT 2011


urbancamo <mark at wickensonline.co.uk> wrote:

<snip> 
> I have an Alphaserver 1000A working nicely with an external BA356 SCSI
> disk enclosure via an 8-bit personality module. It is connected via an
> NCR 53C810 based SCSI card.
<snip> 
> If I try and use a 16-bit personality module connected to a KZPBA-CX
> QLogic card via a 68 pin external SCSI cable it doesn't work. I've
> tried two different 16-bit personality modules and two different
> cables (a right-angled and straight in cable - my understanding is
> that the right angled-cable is the one I should be using)
> 
> When connected 16 bit I get the following error message on boot:
> waiting for pkc0.7.0.2004.0 to poll...
<snip>

Did you check the termination switch pack (S4) settings on the 
personality module? That's the block of four dip switches close to the 
cable connectors. Switch 1 (in a single bus configuration) should be 
on/closed to terminate the SCSI bus end.

Hans.



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