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Article #69213

Q re Fast-SCSI-2 leads & 50-pin Micro-D Active Terminators ...

#69213
From: J A F Bradbury
Date: Sat, 06 Apr 1996 00:00
31 lines
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Who sells:
- "certified" g.quality internal F-S-2 cables, 6/7 head?   (& ~ price?)
- 50-pin ?Micro-D? Active-Terminators?                     (& ~ price?)


I've had a few quirks with a PD drive + NCR-815 + W95  <sigh>
- It first pauses on reads (not writes: slower? @125-175KB/s) after >50MB
  has been TR since power-on to either SCSI or EIDE h/d, then within 30secs
  W95 hangs solid. PD busy-light goes out. A 5-10sec pauses is ~ right for 
  a SCSI bus reset.

  I'm assuming the PD drive (like a Tosh 3501, ie, CD) should not have 
  sync TR mode enabled in fudge-95? It's already doing snail TR mode.


Other devices (5) are ok.
- I've not got NT on to see if the logs would say if it's a SCSI problem.
  Noticed that even with the PD present-or-not Linux still throws a tantrum
  during bootup, and it's stored on an *EIDE* h/d. That might have been due
  to Norton Utilities trying to "fix" its partitions however :(


It does sound like a SCSI lead problem, rather than anything else?
- The Bus is Active at one end, Passive at the other. The lead is 1.5-1.75m
  long, so with 5x internal devices wiring (=<10cm?) that's getting quite
  close to the ideal-conditions limit of F-S-2.

No-ones got a SCSI bus analyser they don't want? ;)
-- 
Julian AF Bradbury         Ergonomist; Human Factors & IT Specialist
Insomniacs 'R Us.                       http://webzone1.co.uk/www/3b
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From: J A F Bradbury <Julian@xabcs.demon.co.uk>
Subject: Q re Fast-SCSI-2 leads & 50-pin Micro-D Active Terminators ...
Date: 1996/04/06
Message-ID: <248480004wnr@xabcs.demon.co.uk>
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