A motherboard replacement have the tendency to not recognize the AC-DC adapter or the battery

Running a repair service laptop in New York, and have all brands of laptop computers for day to day I helped repair order through the most common problems laptop brand by brand. I will speak today on Dell laptops. DELL Laptop most common problems we face are problems of energy, especially power connector problems. The symptoms are: the laptop is running on battery alone, unable or charge the battery. Complete replacement is recommended, not only the welding power pins on the motherboard, since fail again as they did for the first time. A new force will have a longer duration and the part that is cheaper if you buy E-bay. A replacement power connector will save you from changing the motherboard, and the cost is almost half the replacement motherboard.

The only problem is that Dell laptops after a sale or a transplant to replace the motherboard does not tend to recognize the AC-DC adapter or battery. This is particularly true in Dell notebooks, but we found a solution that worked in most cases. After replacing the power connector on Dell and Dell replaced the motherboard, before sony viao vgp ac19v19 ac adapter starting the laptop remove the battery CM-OS for 5 min to reset the BIOS. You will need a charger compatible with Dell AC-DC and battery compatible with Dell loads above 10%. Start the laptop and press F2. Will the BIOS settings. In the configuration to set the clock. Restart to save your changes. When the BIOS message appears again, press the F1 key to continue.

When in Windows go to the Dell website, locate the drivers for your model, depending on the model and download the updated BIOS. DELL Run the BIOS update, and the computer will restart and update the BIOS. When you start again, your laptop expected to recognize the battery and AC-DC adapter. If the Dell laptop will not recognize the battery or charger after those steps, then the defective parts. You can easily check the battery status by pressing the battery in the back of the battery. If the battery is good it will green light that indicates the amount of cargo. If nothing appears, it means that the battery had its day and should be replaced. The AC adapter can be checked with a voltmeter, or if the laptop is running on battery, but not in the AC adapter try another one if you have one. Hope this helps.