UPDATE: Dead laptop comes back to "Life" Mystery

[Guest Brad]

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

 

 

On Wed, 23 Apr 2008 11:42:24 GMT, in sci.electronics.repair you wrote:

>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.

 

 

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