Agnus part #?

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#2850

From: Ned W. Schultz
Date: Sat, 20 Jan 1990 04:57

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A friend of mine has a Rev 3 B2000.  He has put in the Super Agnus chip
twice now, with two different chips, but is still getting weird,
"salt-like" sprinkling in HAM pictures and scrambled objects in
animations, sometimes leading to GURUs.  His J500 location was a jumper,
not a trace, and he removed the jumper.
 
The Agnus chips both came from the same dealer.  Today we noticed that
the part number seemed odd.  On both of the new Super Agnus chips the
number is 8370.  This is the same number that is on the 512k Agnus that
he removed.  The installation directions indicate that the 1 meg Agnus
is part number 8372.  In another source we have seen it referred to as
8372A.
 
Now the punchline:  Did this dealer sell the guy not one, but two *old*
Agnus chips?!?  Or is this too obvious to be the solution?  
 
If anyone could shed light on the numbering or on any other possibilities
for the weird video stuff, please speak up...
 
Ned Schultz    nschultz@polyslo.calpoly.edu

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!jarthur!polyslo!nschultz
From: nschultz@polyslo.CalPoly.EDU (Ned W. Schultz)
Newsgroups: comp.sys.amiga.tech
Subject: Agnus part #?
Message-ID: <25b7efbf.335a@polyslo.CalPoly.EDU>
Date: 20 Jan 90 04:57:35 GMT
Reply-To: nschultz@polyslo.CalPoly.EDU (Ned W Schultz)
Distribution: na
Organization: Cal Poly State University -- San Luis Obispo
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