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Apple II+ - "all" memory bad... surely not?
- Subject: Apple II+ - "all" memory bad... surely not?
- From: "N.N. Thayer" <nnthayer@hotmail.com>
- Date: Fri, 12 Mar 2010 21:29:04 -0800 (PST)
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A Rev 04 II+ that I recently acquired is displaying behavior that I'd
normally attribute to bad RAM - known good disks failing to load,
spontaneous vomiting at the command prompt, etc. So I loaded the
official II+ diagnostics program (which, oddly, always loads without a
hitch) and ran several tests.
The RAM test shows a textual representation of the motherboard memory
grid, and marks bad chips. The test claimed that every single RAM
chip - even those on the Language Card - was bad. Removing the
Language Card made no difference. I find it hard to believe that
*all* of it is bad... assuming that's not the case, what other sorts
of conditions would cause such a test result?
(Fortunately I have a spare Rev C motherboard from which I can
cannibalize parts if necessary.)