alexkharden
1 Copper

AC power adapter wattage and type cannot be determined, please help...

Ok, I have read through these forums, and others, and have been unable to resolve this issue after trying like a million things. Here's my issue:

This is on a Dell Inspiron N4030 running Windows 8 Pro with Bios Revision A07.


On boot-up I get this message:


"The AC power adapter wattage and type cannot be determined.

The battery may not charge.

The system will adjust the performance to match the power available.

Please connect a Dell 65W AC adapter or greater for the best system performance.

Strike the F3 key (before F1 or F2 key) if you do not want to see this power warning message again.

Strike the F1 key to continue, F2 to run the setup utility."

If I strike F2 and go into the bios it says "AC adapter type    unknown"

If I strike F1 to continue boot-up it boots into windows and then the battery indicator shows "Plugged in, Not charging"

In attempting to fix this issue I have:

1. Replaced the battery.

2. Replaced the motherboard

3. Replaced the Power Board

4. Swapped out the adapter with several other Dell adapters we have in the house (we have 6 Dell laptops). Adapter revisions used are A00, A01, and A02.

5. Did the whole rigamarole here: http://jeffreypalermo.com/blog/plugged-in-not-charging-windows-7-solution/

6. Tried various combinations of plugging/unplugging at different intervals and at different speeds that I have read on multiple sites.

7. Reset the Bios by disconnecting the battery and AC adapter and the holding down the power button for 20 seconds.

Someone please, please help me.

Thank you everyone,

Alex

14 Replies

RE: AC power adapter wattage and type cannot be determined, please help...

Hi alexkharden,

Great job done on the troubleshooting, we appreciate that you’ve tried all possible steps to isolate and resolve the issue.
However, please try removing the battery and inserting on another Dell Computer and charge the battery for at-least 50%.
Once the charge is completed kindly insert the battery back on your Inspiron N4030 computer also connecting the original AC Adapter.

Turn on the computer and flash the BIOS by clicking on the link below.
http://dell.to/1dFtXxL

Type the Service tag and under Drivers and Downloads select the Operating system and select option BIOS and install the same.
NOTE: In order to flash BIOS the battery needs to be charged at least 20%.

Please try the above mentioned steps and let us know your findings.

Thanks and Regards,
Munawar P
#iworkfordell
To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US / India.
For Dell support videos click here.

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alexkharden
1 Copper

RE: AC power adapter wattage and type cannot be determined, please help...

Unfortunately, the battery for the N4030 will not fit into any of the other laptops. Is there any other way to charge the battery? The laptops we have are the N5010, N5110, N4010, N4110, N7110, and the N4030 that is currently giving me problems.

Thank you.

Edit: The battery for the N4030 is currently at 15%.

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alexkharden
1 Copper

RE: AC power adapter wattage and type cannot be determined, please help...

I attempted to flash the bios anyway (A07 version), even though my battery is at less than 20%. It said "Cann't flash to the same BIOS version" (misspelling included). I then downloaded a previous version (A05) bios to try to flash to it and it said "You are about to flash your bios to an older BIOS version. Dell does not recommend flashing your bios to an older version. Press OK button to exit."


I ran both flashes normally and also as an administrator. So unless there's some trick I don't know, I'm not able to flash the bios.

0 Kudos

RE: AC power adapter wattage and type cannot be determined, please help...

Hi alexkharden,

Thank you for your response and I appreciate that you tried flashing the BIOS to the latest version, you’ve also mentioned about Motherboard, Power board and battery replacement.
This may happen because of faulty power board which was replaced previously. Were these parts replacements done from Dell, if yes then please provide us the Order number for the same?
You can check the hardware warranty status of your computer by clicking on the link below.
http://dell.to/1dFtXxL

Type in the Service tag and click on Warranty. If the system is under warranty, please send me the Order number or the Service tag of your computer on a private message by clicking on my username and selecting send a Private message option and provide your service tag and contact information (as mentioned below) so that I may access your system records.

System Service Tag No:
Registered System Owner's Name:
Shipping address:
Telephone number/s:
Email address: 

Let us know if this helps.

Thanks and Regards,
Munawar P
#iworkfordell
To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US / India.
For Dell support videos click here.

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alexkharden
1 Copper

RE: AC power adapter wattage and type cannot be determined, please help...

No, unfortunately my warranty expired in November. I'm left to troubleshoot this on my own. So any suggestions on how to proceed?

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RE: AC power adapter wattage and type cannot be determined, please help...

Hi alexkharden,

Since you’ve mentioned on your first post saying that Battery, Motherboard and Power board was replaced.
Was that replaced by Dell or was that done through a local technician or a 3rd party vendor.
If those parts were replaced through Dell we can check the Order number and let us know or you can contact the
3rd party vendor or the local technician so they can check and replace the necessary parts.

Let us know if this helps.

Thanks and Regards,
Munawar P
#iworkfordell
To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US / India.
For Dell support videos click here.

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alexkharden
1 Copper

RE: AC power adapter wattage and type cannot be determined, please help...

All of the work has been done by me, not a Dell Technician. The problem still exists, any solutions?

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RE: AC power adapter wattage and type cannot be determined, please help...

Hi alexkharden,

As mentioned in my previous post the Power board might be faulty and needs to be replaced and since the computer’s not in
active hardware warranty I’d suggest you to please contact the Out of Warranty team on 1-800-288-4410(US only).
You may also get in touch with a local technician who might check your computer and assist further in replacing necessary parts.

let us know if this helps.

Thanks and Regards,
Munawar P
#iworkfordell
To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US / India.
For Dell support videos click here.

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Highlighted
realavaloro
1 Copper

RE: AC power adapter wattage and type cannot be determined, please help...

I am having the same issue.

A Dell technician replaced today the mother board, speaker and keyboard of my Dell xps13 9333 and after that he updated the bios firmware with the latest one.

Not only the replacements have not resolved the previous issue but also I get now this:

he AC power adapter wattage and type cannot be determined

The battery may not charge

The system will adjust the performance to match the power available

Please connect a Dell 45W AC adapter or greater for the best performance

Strike F3 key if you do not want to see power warning message again..

And the led in the front is red color and keeps blinking. And the battery icon says that it is plugged in but not charging.

I have called Dell support and they tell me that the charger is faulty. A charger one month old that was working PERFECTLY just before the technician replaced motherboard, speakers and keyboard.

Any workaround other than sending my laptop to the workshop as I was suggested or getting a replacement charger which obviously I don't think is the issue?

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