I asked:
> I've got an old SS1 at a professor's home that resets the clock every
> time he turns off the power. (It changes to a random, highly incorrect,
> value). I opened up another SS1 to see what sort of battery runs the
> clock, but I don't see one anywhere on the motherboard.
>
> Does the clock run from the same battery that powers the NVRAM? The
> machine still has a reasonable value for its hardware ethernet address
> and hostid, so I don't think its failing. Can anyone tell me where the
> battery is that keeps the clock accurate while the power is off?
The answer is:
Yes. The clock runs from the same battery that keeps the NVRAM alive.
The fact that the clock is going indicates that I'd better get that
NVRAM replaced before I lose my hostid and hardware ethernet address
as well. Thanks to:
martin@gea.hsr.it (Martin Achilli)
mch@squirrel.com (Mark C. Henderson)
John Valdes <valdes@geosun.uchicago.edu>
Jay Lessert <jayl@lattice.com>
polaris2!balvarad@netcom.com (Bill Alvarad)
poffen@San-Jose.ate.slb.com (Russ Poffenberger)
Thanks also to John Valdes for mailing me a copy of the NVRAM FAQ, which
I will follow in trying to piggyback a new 3v battery onto the existing
NVRAM. (Much cheaper).
+-----------------------------------------------------------------------+
| Christopher L. Barnard O When I was a boy I was told that |
| cbarnard@cs.uchicago.edu / \ anybody could become president. |
| (312) 702-8850 O---O Now I'm beginning to believe it. |
| http://www.cs.uchicago.edu/~cbarnard --Clarence Darrow |
| Cyber Rights Now: Accept No Compromise. |
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