Ac Adapter Unknown Dell Bios

The ac adapter is not recognized as dell s and it is said to be unknown in bios and after starting the machine.

Ac adapter unknown dell bios. In this video how to fix ac adapter for laptop you will learn about common symptoms of a problematic ac adapter and ways to resolve ac adapter issues. If the working adapter works then its an issue with your ac adapter if it says unknown in the bios then its a motherboard failure. Ac adapter unknown plugged in not charging so i ve had a dead battery on my inspiron n5010 that would not hold a charge. This problem might be due to problem with ac adapter cable port or mobo.

This results in cpu underclocking a lot and battery not charging at all although notebook is usable. The system will adjust the performance to match the power available. Hi i have dell inspiron 5559 and it does not start at all giving an alert the ac power adapter wattage and type cannot be determined. Press the f2 key at the dell logo on startup to load into the bios and check what does it say next to ac adapter if it says unknown try another working adapter.

Move the cable plug jack if possible and see if the field is updated or intermittent. This warning can be disabled in bios setup. If the field just says unknown device installed all the time try the adapter with a different dell laptop if it works in that case it s most likely the host controller chip on the mother boards or the power adapter adapter jack that needs re soldering. How to fix the ac power adapter wattage and typed cannot be determined.

I ve read this is mostly an issue of the mainboard. The battery may not charge. But in my case the system normaly works i have this fault about 1 or 2 times a week and when i reconnect the adapter a couple of times to the notebook while having the battery page of the bios opened it runs fine again. In this case it s likely a loose contact.

Somtimes my dell inspiron 5150 says unknown ac adapter on startup. I also noticed that when i plug in the dell 65w ac adapter that came with my computer without the battery as a temporary power source and the light on the ac adapter shut off. To update the bios to the latest version refer to the dell knowledge base article how do i download and install the latest bios for my dell computer. Sửa lỗi cục sạc adapter laptop dell inspiron 3169 không sạc được pin.

Dell laptop pcs may use either a 65w 90w.