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My Dell Inspiron 1200 will not run on ac power supply. It drains the battery and this is when it is plugged into the power. I have it set to desktop scheme as I always use it inside the home and have it plugged in. I can not find a way to set it to always use ac power. any suggestions. I have ordered a new power adapter to see if that could be as issue. I haven't received it as yet.

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I've had a similar issue and believe the problem could be one of two things. 1.) Your power supply, so you may want to disconnect and reconnect (very firmly) the powersupply to the computer, wall, and inbetween if you have two cord device. Also you may want to try a different electrical outlet. 2.) It could likely be the power connection to the motherboard, you can test this by "gently" applying constant pressure to where the power supply connects to the laptop. You can do this by slowly, but gently, pressing up, down, left and right on the connector to see if the power on your laptop goes from battery use to "On AC Power". I would suggest imanging the face of a clock and starting at 1 o'clock and moving ever so slowly around to 12 o'clock. If your AC Power does kick on then it is definately your motherboard connection and a repair or replacement for the motherboard is in order. *** NOTE press gently, if this is not the problem you don't want to break it and have this become the problem. ***

Hope this helps, Best Regards, -md

Posted on Nov 14, 2009


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