[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
IIGS memory error
- Subject: IIGS memory error
- From: apple2pd@garp3.icaen.uiowa.edu (ground.ecn AppleII Librarian)
- Date: 21 Mar 2002 15:55:32 GMT
- Distribution: world
- Newsgroups: comp.sys.apple2
- Organization: Iowa Computer Aided Engineering Network, University of Iowa
- Xref: archiver1.google.com comp.sys.apple2:18317
When I run the Claris memory test (MemoryCL) from AWGS on a Rom3 with 1Meg
Apple memory expansion board, I get a memory error at $180582 .
Which chip(s) is most likely at fault. UA1-UA8 are soldered in. UA9-UA16
and UB1-UB16 are socketed. UA1-UA16 are top row of memory chips, UB1-UB16
are bottom row.
I was guessing a chip around the UB9 socket but moving around
chips in UB8-UB11 isn't helping. Removing UB9 chip doesn't even let the
GS finish booting Sys6.0.1.
What are stategies for finding/isolating bad chip? Once I find the right
group of 8 chips I think I can shift and rotate to find bad chip but I
can't find the right place to start yet.
Help! and thanks.
--Steve
--
--Steve (apple2pd@ground.ecn.uiowa.edu)