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Article View: comp.sys.amiga.tech
Article #11599

a500 ram failure

#11599
From: Wim Letzer
Date: Sun, 26 Feb 1989 20:16
14 lines
1159 bytes
Hi there,

Using the recently posted program MD, I discovered that I have a flaky 
ram chip in my amiga 500. When I use malloc(1024) often enough to get a
pointer to 0x254ef, I find I can write 0x080 to it, but always get a
return of 0x00. I think I have to replace one of the 256x1 drams.
Can anyone give me a hint on which chip I have to replace and maybe some
directions on how to replace the chip. I am not totally inexperienced in
soldering, but then again I could use some technical advice. Would it be
advisable to insert a socket or is just piggybacking with disconection
of the data pins a good solution. 
Any help will be appreciated.

			Thanks, Wim Letzer.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!hp4nl!philmds!prle!prles2!nvpna1!letzer
From: letzer@nvpna1.prl.philips.nl (Wim Letzer)
Newsgroups: comp.sys.amiga.tech
Subject: a500 ram failure
Message-ID: <407@prles2.UUCP>
Date: 26 Feb 89 20:16:33 GMT
Sender: nobody@prles2.UUCP
Reply-To: letzer@nvpna1.prl.philips.nl (Wim Letzer)
Organization: Philips Research Labs Eindhoven
Lines: 14