Just to rule out the UPS causing the message, try booting up with the PC 
plugged directly into the wall outlet.

 From the message text it is probably not related to the CMOS battery.

I would normally say that I hope my suggestion helps, but in this case, 
if it is an UPS failure, it will likely result in spending $ to remedy.

Tom

SRS wrote:
> Hello All;  Lately and occasionally when I boot up my pc an error 
> message appears" low battery you must switch to ac power or you may 
> lose all data"  I am plugged into an ac outlet (first a Tripplite 
> Internet Office UPS) any ideas on what is going on?
> Could it be the quarter size battery located inside  pc?
>
> Thanx in advance for any suggestions
>
> stephen r stanfield
>
>          
>
>

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