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From: FINEBERG@WUMS2.WUSTL.EDU (Charlie Fineberg)
Newsgroups: comp.sys.amiga.hardware
Subject: More on my sick 2500/30
Message-ID: <9105301901.AA04197@wugate.wustl.edu>
Date: 30 May 91 19:01:59 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 37


  Well I know that all of you are probably dying to hear about what I have
done to attempt to fix my 2500/30 and I just can't disappoint you.  To
recap, this was the problem.  My 2000 w/A2630 + 4M (the last two socketed
yeah!) with 2 floppies and no hard disk (long story...) was merrily playing
Lords of the Rising Sun last Saturday afternoon.  When suddenly the pointer
started adapting to mouse movements more and more slowly.  The entire
machine hung up (with one of the nice images from the game on the screen). 
It wouldn't respond to a cold reboot or any mouse/key/disk change.  When I
power cycled I got three quick flashes of the power LED and then Dk Grey,
Lt. Grey and nothing.  Still nothing to this very moment.
  Well what have you done between then and now?  After all you consider
yourself a college educated digital engineer and have been fixing DEC bus
based systems (Q and UNI) for over half a decade.  Why isn't it working
yet?  Well a friend of mine has an A2000 which is not responding to
horizontal mouse movements but is otherwise working.  He let me swap chips
to find out both what is wrong with his system and with mine.  Let me list
what we swapped from one system to the other without changing the behaviour
of either machine.  (What is socketed on our mother boards?)
	BUSTER
	DENISE
	PAULA
	68000
	ROM
I had a fun evening.
  Anyway, I didn't have the equipment or patience to swap Agnus (we both
have 512K FANG).  Does this mean that the offender must be Agnus on my
board?  (And yes I realize that U202 is probably the culprit for his
mouse problems).  And thanks to all those who told me to reseat the chips. 
I should have done that before I complained net wide, but it motivated me
to be rigorous.  I actually thoroughly cleaned the board too.
  Any help from any quarter gladly accepted!
	Charlie
-- 
Charlie Fineberg	Biochemistry Dept., Wash. U. Sch. of Medicine (WUMS)
Box 8231, 4566 Scott Ave.		  BITNET: FINEBERG@WUMS
St. Louis, MO 63110			internet: fineberg@wums2.wustl.edu