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Posted by BillW50 on March 30, 2008, 9:33 am
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NJ typed on Sun, 30 Mar 2008 06:17:34 -0700 (PDT):
> Hi,
>
> I have a Toshiba Tecra M4 Tablet PC that is about 2 years old. 1 year
> ago, the machine froze during use requiring a hard reset. When it was
> reset it failed to post (all I got was a black screen). After several
> hard resets from this state, I got the machine to restart. Now, after
> the machine runs for a period of time (sometimes 5 minutes, sometimes
> 25 minutes), it freezes again and goes into the failure at POST. Now,
> sometimes it takes 30-40 hard resets at the start to get it to POST
> and boot - but when it does the machine runs perfectly until it
> freezes. If, when the machine is running properly, I do a normal
> shutdown, the startup is uneventful. It seems that a hard reset is
> what causes the problem at startup.
>
> I have updated the BIOS to the latest version. I have tried
> disconnecting the CMOS battery, taking out the laptop battery, etc in
> an effort to reset the CMOS - nothing works.
>
> Any suggestions? I feel like this is a (relativley) minor problem, as
> the rest of the machine works 100%. What I am looking for is a method
> to "reset" the BIOS right after I do a hard reset. I think this will
> clear whatever issue is preventing the POST.
>
> Thanks,
Simply removing the CMOS battery just isn't enough. Sometimes it has to
be removed for days. Sometimes removing the battery and shorting the
battery connections on the board is enough to do the trick.
--
Bill
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