Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!usc!samsung!umich!terminator!citgate
From: Tugrik@Thunder_Island.GATE.citadel
Newsgroups: comp.sys.amiga.hardware
Subject: A590 dual drivin' it
Message-ID: <910115031902@internet.gate.citadel>
Date: 15 Jan 91 11:34:40 GMT
Sender: gatekeeper@internet.gate.citadel
Organization: FBR Technologies
Lines: 28


 
I have an Amiga 500 with an A590 HD chassy.  On it is the original Western
Digital 20 meg IDE (cough, gag.. but hadda come with it).   I was given
for christmas by a good friend a Seagate 40meg SCSI NiceAndFast drive.
 I grabbed an old IBM power supply, and a SCSI ribbon cable, opened my
a590 and 'tached her up.  Works beautifully, and reads *extremely* fast.
 Makes my disk-anim works acutally ANIMATE.
 
 Anyway, the problem:  When I have both drives up and running at the same
time, some CPU intensive programs *CRASH* badly, with a Guru 00000003,
namely Addressing Error.  I know it happens when I attach the second drive,
due to I replicated the crash, cured, it, and crashed again, as I attached,
removed, and attached the drive.  
 
 Tell me: does having BOTH drives working off the INTERNAL A590 drive
connectors (instead of having the SCSI on the *external* 25pin) draw more
voltage, or cause any other thing that would make my 500 get "Addressing
Errors" and crash while in mid-render?  (Specific package: Turbo Silver.)
 
 And, if it does: (1) how to cure it?  (2) can you *GET* a cable for that
25pin to the pinrack on the back of the SCSI?... and (3) does having an
external supply that isn't grounded together with the 500 hurt?
 _________________________________________
 \  Thunder Island - Information Gateway  \
  \          ---------------               \
   \  Citadel C86k Net - USENET News Link   \
    \________________________________________\