My new AC adapter doesn power my laptop or charge my battery, Whats wrong?
Make sure that the AC Adapter is plugged in properly and that all the other leads are also plugged in properly. If the light comes on but it still doesn’t charge, then the cable connected to the laptop may be faulty or the socket on the laptop may be faulty. If the light doesn’t come on then the power lead may be faulty, or the fuse in the plug may be faulty or the power socket on the wall may not be working. Intel has an interesting page on issues with AC Adapters and their processors.