Xref: utzoo comp.sys.amiga.hardware:4502 comp.sys.amiga.tech:15970
Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!usc!ucsd!ucbvax!ucdavis!iris!rogers
From: rogers@iris.ucdavis.edu (Brewski Rogers)
Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.tech
Subject: My A1000 has a bad ram chip. Which one is it?
Message-ID: <9264@aggie.ucdavis.edu>
Date: 11 Nov 90 23:17:54 GMT
Sender: usenet@aggie.ucdavis.edu
Reply-To: rogers@iris.ucdavis.edu (Brewski Rogers)
Followup-To: comp.sys.amiga.hardware
Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
Lines: 21

Hi, my one of the ram chips in the chip ram of my A1000 has just died,
and I'm trying to figure out which one it is.

I wrote a little test program, and it appears that locations
418304-418815 are bad. When I write $ffff, it contains $fffb.
From this I assume whichever chip corresponds to bit 3 on the
A1000's 256K expander is bad. Do you know which chip this is?

As a temporary solution, I pre-allocated the memory between 
418304-418815, which lets me run some software, but I sure
would like to have my amiga recover from this amnesia.

Thanks (as usual) in advance!

-bruce

------------------------------------------------------          Quantum _\/_
2822 Ganges                Bruce (6502 RULES!) Rogers        |\  Duck  ( 0 0)
Davis, Ca 95616            Quantum Duck Software,           |\ \______/ / \\\
916-753-7158               rogers@iris.ucdavis.edu         |\ <  <     |   \/
Cinnamon, Rock Candy, or Sugar? decisions decisions.         \_________/  Quark!