When I unplug my AC Cord on my Notebook my system crashes. Locks up and
the only option is to power down, and restart the computer.

Does anyone have any suggestions, or have had this problem before?

Vista 64 Home Premium
Gateway T6836
Intel Core Duo

Thanks.

Allan


--
ARFARF

"ARFARF" wrote in message
...

When I unplug my AC Cord on my Notebook my system crashes. Locks up and
the only option is to power down, and restart the computer.

Does anyone have any suggestions, or have had this problem before?

Vista 64 Home Premium
Gateway T6836
Intel Core Duo

Thanks.

Allan


--
ARFARF

Will the notebook run on battery power alone? If not, you
have a battery problem. If it does run okay on battery, there
is a problem with the power switch over circuit. When the
AC power is removed, the notebook should switch instantly
to battery power. If there is the slightest delay, or momentary
voltage drop, the power glitch could freeze the system.

Yes the notebook does switch to battery power and runs. If the problem
is with the "power switch over circuit", what can be done?


--
ARFARF

ARFARF wrote:


When I unplug my AC Cord on my Notebook my system crashes. Locks up and
the only option is to power down, and restart the computer.

Does anyone have any suggestions, or have had this problem before?

Vista 64 Home Premium
Gateway T6836
Intel Core Duo

Contact Gateway tech support for repair/replacement.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
FAQ - http://www.elephantboycomputers.com/#FAQ

Contacting Gateway was the first thing I did. They want me to reinstall
the operating system, which is always the standard step for a problem
they don't know how to resolve.
The problem replicates in Safe Mode, as well.


--
ARFARF

"ARFARF" wrote in message
...

Contacting Gateway was the first thing I did. They want me to reinstall
the operating system, which is always the standard step for a problem
they don't know how to resolve.
The problem replicates in Safe Mode, as well.


--
ARFARF

That's because it's a hardware problem in the power circuit.
I was being a bit simplistic in my description of power
switchover. I'll use my HP laptop for an example. The
battery voltage is 14.8V, and the power brick supplies
power at 19 volts. On the laptop mainboard there are
voltage regulator and battery charge control circuits.
The voltage regulators supply the +12V, +5V, and +3.3V,
along with appropriate CPU and memory voltages.

When external power is attached with the battery in,
the battery charges, and power is supplied to the voltage
regulators. If the power brick is disconnected, the regulators
have to instantly adjust to the drop in voltage down to the
battery supplied voltage. Any glitch in this could cause
a system freeze. I would suspect a failing capacitor in
your case.

When disconnecting external power from a laptop, it's best
to unplug the brick from AC power first, as the voltage
from the brick will drop more slowly, giving the voltage
regulators time to respond. If you pull the connector from
the laptop, the power cut is instantaneous, but the laptop
should still be able to handle it.