Hi,
Well it didn't last long, around 6 days, but this time it "died" while I was downloading. I will not spend any more time trying to fix this Compaq Presario 1200XL110. I removed the 3V RTC/CMOS battery, which I bought new. I check the voltage (2.98V).
Brad
Hi,
>
> I have a Compaq Presario 1200XL110 laptop (bought 2nd hand) with
>bad display (display "wires" disconnected). I used an external Monitor. I
>kept the laptop plugged into AC all the time and the battery installed. I
>had no problems the first few days. Note: the laptop was on from 7:30AM
>until around 5PM every day. Then one morning, I tried to turn it on, but
>absolutely nothing happened. The only indicator that was lit, which
>is always lit, is the plugged into AC indicator. Note: I am a TV, etc. (not
>computer) serviceman. I won't go into details of the tests I performed, which
>included testing the power switch.
>.
> I removed a dead (!!) RTC/CMOS battery. Note: When the laptop "worked",
>there was no sign (loss of time/date) that the RTC/CMOS battery was going bad.
>
> I put this laptop in a box (main battery removed). About 5 days later, I
>hooked it up to AC, but left the main battery out (RTC/CMOS battery removed).
>When I tried to turn it on, absolutely nothing happened so I put it back in
>the box (main battery removed).
>
> Over a month later, I hooked up the laptop (main battery removed & no RTC
>battery). When I pressed the power button, it booted up!!!!!!! I repeated
>shut down and power up. It boots up every time, although I see a warning
>message caused by no RTC/CMOS battery. I installed a new RTC/CMOS
>battery. I now use it on AC without the main battery installed. When I shut
>it down for the day, I remove AC power via the switch on the power strip.
>
> Can someone explain this MYSTERY???
>
> Thanks in advance, Brad
>
> Before you type your password, credit card number, etc.,
> be sure there is no active keystroke logger (spyware) in your PC.