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- Newsgroups: comp.sys.cbm
- Path: sparky!uunet!spool.mu.edu!wupost!sdd.hp.com!elroy.jpl.nasa.gov!nntp-server.caltech.edu!rknop
- From: rknop@cco.caltech.edu (Robert Andrew Knop)
- Subject: Re: C-64 gives Out of Memory errors on power up - ideas?
- Message-ID: <1992Sep6.001823.17951@cco.caltech.edu>
- Sender: news@cco.caltech.edu
- Nntp-Posting-Host: punisher
- Organization: California Institute of Technology, Pasadena
- References: <1992Sep5.214327.13999@infonode.ingr.com>
- Date: Sun, 6 Sep 1992 00:18:23 GMT
- Lines: 21
-
- drudetb@infonode.ingr.com (Ted B. Drude) writes:
-
- >I've got a C-64 here with some problems.
- >When I power it up, I get the following: "?OUT OF MEMORY ERROR IN 0"
-
- >If I do a "?FRE (I)", I get -621 back. Obviously there is either a
- >memory problem, or a ROM problem.
-
- I had a 64 that only gave me something like 7000 bytes free when I booted it
- up. I stopped using it (bought a one a friend didn't need any more for $20).
- A couple of years later I decided to try to fix it, and at that point the
- screen came up blank. Turned out that the problem was the PLA, as replacing
- it fixed the 64 (and it is able to access all of the memory now).
-
- The moral of the story is not that your PLA is bad, but that the problem
- _could_ be PLA. It could also be RAM chips, as you mention. I'm not sure
- what else it could be that would let you boot up but not show RAM. (I 'spose
- some connection to the RAM chips could be bad or something.)
-
- -Rob
- rknop@tybalt.caltech.edu
-