M1330: Brand new MB, now won't charge.

Dell tech came out to replace my motherboard for the second time in 12 months earlier this week and left the wrong ac adapter (didnt notice until after well after he left). So dell shipped me another ac brick which arrived today, but the laptop still isnt recognizing it. The battery is completely dead now, but before it went down I checked in BIOS and it was showing no AC adapter there either. It's getting power from the wall (green light is on) but I dont have a multimeter handy to check the voltage from the brick to the computer. The light doesnt go out when I plug it into the computer like it did when the MB died. What are the chances it's a faulty adapter or do I have another problem? Anybody else had this happen? I'm getting really frustrated with this machine. TIA guys.

 

If the light on the adapter works, the adapter most likely works. For the light to work, and the adapter to not work, the fault would have to be in the cable leading from the adapter to the laptop, a segment unlikely to fail.

Most likely the tech gave you a dud board or failed to install the board properly. In either case, the best thing you can do is probably call up Dell again. You should always check if your machine is working properly after a tech visit, even if it's for something simple...

 

definitely my fault for not checking but I assumed when it powered up that something I had never had problems with would work correctly. They will just have to send someone out to fix it properly.