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From: msschaa@cs.vu.nl (Schaap MS)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: CMOS failure
Message-ID: <10265@star.cs.vu.nl>
Date: 20 Jun 91 14:00:38 GMT
Sender: news@cs.vu.nl
Organization: Fac. Wiskunde & Informatica, Vrije Universiteit, Amsterdam
Lines: 19

My mother has recently bought a second hand AT, about 2.5 years
old. It has a problem with the CMOS.

When you turn on the computer, you get
   CMOS battery OK.
   CMOS checksum error.
and the setup is lost.

I opened the computer, but everything seemed ok. (But I couldn't
find the CMOS chip (what does it look like?))

We first noticed the problem after we put in a 3.5" disk drive
(no new controller, just a new cable). Could that have anything
to do with it?

Thanks,

    Michael Schaap
    msschaa@cs.vu.nl