Question about PC Desktops
Dell PA-10 & PA-12 have internal serial ROM chips that communicate with the PC via the tiny center pin in the powerr plug.
If that pin gets bent or is not making proper contact, the laptop USUALLY complains and runs from AC adapter but refuses to recharge the battery ..
Posted on Apr 16, 2008
It may not be the power supply. The Battery can only take 500 charging cycles in it's lifetime. the battery could have failed or the chip on the motherboard that regulates voltage to the battery may have failed.
Easy test for power supply is with battery removed if it still powers up the laptop than the voltage and amperage are sufficient.
Posted on Mar 27, 2008
Tips for a great answer:
Windows provides the following
plans to help you manage your computer's power:
Balanced. Offers full
performance when you need it and saves power during periods of inactivity. This
is the best power plan for most people.
Power saver. Saves power by
reducing system performance and screen brightness. This plan can help laptop
users get the most from a single battery charge.
High performance. Maximizes
screen brightness and might increase the computer's performance in some
circumstances. This plan uses a lot more energy and will reduce the amount of
time that a laptop battery lasts between charges.
High performance doesn't appear on the battery meter by default.
To turn on High performance, open Power Options by clicking the Start button , and then
clicking Control Panel. In the search box, type power options, and then click Power
Options. Under Select a power plan, click Show additional plans, and then click High
If these plans don't suit your needs, you can create your own power plan, using one of these plans as a starting point.
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