Dear All
We had the same problem a few months ago, changing the CPU-battery solved
the problem.

Stefano

>Mary
>
>Curiously, we are suffering exactly the same problem as I write. We had a
>similar fault a year ago and after testing all the boards in the STE bus,
>deduced that there was a fault with the power supply. Superfically it was
>working and providing 5v but apparently when under full load it was dipping
>which caused the CPU to crash intermittantly.
>
>We had the power supply fixed by Daren Electronics  (who supply them to
>MicroMass) for a bargain £25 and everything worked fine until last week,
>when the same fault reappeared.  So, suspicious that the repaired power
>supply is playing up again I am awaiting to try out a new one ordered last
>week.  However I am very intrigued by the comments by Harro and Bruce that
>the CPU battery may be at fault (I confess I didn't know there was one!). I
>am just going down to the lab to investigate as soon as I hit the send
>button....
>
>Either way, I'll let you know whether the power supply is the cause of our
>problem or not.
>
>Regards
>
>Dave Mattey
>
>
>
>
>
>>>Dear Isogeochemists:
>>>
>>>Over the past week during autocarb runs on an Optima mass spec using
>>>software v.2.33 we've been experiencing random software shutdowns.  Trying
>>>to reopen the software gives the error message "System controller not
>>>responding".  We can reset the controller and open the software and start a
>>>run again but have yet to make it through a run without this problem
>>>occuring.  It does not seem to be occuring at a particular port # or
>>>process.
>>>
>>>Has anyone experienced this problem and can you offer any solutions?
>>>
>>>Thanks for your help,
>>>Mary
>>>
>>>Mary Hogan
>>>University California Santa Cruz
>>>Stable Isotope Laboratory, E&MS C514
>>>Santa Cruz, CA  USA 95064
>>>email: [log in to unmask]
>>>PH: 831-459-5751
>>>FAX: 831-459-3074
>>>   __o
>>>  -\<,
>>>(_)/(_)
>
>
>Dave Mattey
>
>Geology Dept, Royal Holloway College, University of London, Egham Hill,
>Egham, Surrey, TW20 0EX
>
>Tel:      01784  443587          Office
>                        443582          Secretary
>                        443637          Prism lab
>                        443629          Optima lab
>
>                        471780          FAX



-------------------------------
Dr. Stefano Bernasconi
Geologisches Institut
ETH-Zentrum
CH-8092 Zuerich
Switzerland
Tel. ..41-1-632 3693
fax:  ..41-1-632 1080
e-mail: [log in to unmask]
-------------------------------