From: /m 

On 7 Jun 2006 03:39:20 GMT, Mike.Luther{at}harborwebs.com wrote:

>I have a perfectly functional Zenith 386-25 hard disk and all with one
>exception.  I need to replace the CMOS battery in it!  And wouldn't you know
>it, but my books on this one are buried somewhere in a box at the moment.
>
>Does anyone here remember or can look up where the CMOS battery is located in
>this classic?  I asked this once before, I think in the UseNet ZDS forum and
>think I got only a suggestion that it might be buried somewhere under a chip
or
>something?
>
>Anyone have any help for me here?
>
>Thanks!

Some of those clock chips were made by Dallas Semiconductor.  Here's a
pointer that may help.
http://www.maxim-ic.com/appnotes.cfm/appnote_number/503

 /m

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