Xref: utzoo comp.sys.amiga:63359 comp.sys.amiga.hardware:2954
Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!portal!cup.portal.com!davids
From: davids@cup.portal.com (David Kenneth Schreiber)
Newsgroups: comp.sys.amiga,comp.sys.amiga.hardware
Subject: Another A3000 RAM question
Message-ID: <32628@cup.portal.com>
Date: 9 Aug 90 22:52:57 GMT
Distribution: usa
Organization: The Portal System (TM)
Lines: 22

I've been trying to install an extra meg of RAM in my 3000, but have been
thwarted by (I think) a bad memory chip.  I've got bank 0 filled with the
DIPs that came with the machine;  in bank 1 I've installed the ZIPs.  When
I power up, Kickstart 2.0 loads, the machine is reset, then I get a 
System Error #80000003 at location 07e03234 (well, somewhere in the
07e03000's;  I believe 07e03234 is the correct address).  Can anyone
tell me what socket a bad ZIP would have to be in to cause an error
at that address?  I've tried swapping chips around, but the same error
always shows up at the same place.

The chip types, by the way, are Fujitsu MB81C4256-80PSZ and Mitsubishi
M5M44256AL.  Both are 80ns, page mode, 256x4 RAMs.  The Mitsubish has one
pin missing, though (the technical support person at Krueger said this
was not a problem, that some ZIPs are just made that way;  is he
right?).

Thanks.

-Dave Schreiber at davids@cup.portal.com         "Coffee, Darling?"

P.S.  Kickstart/Workbench 1.3 loads fine, and Memtest V2.0 reports no
errors.