Question about HP Pavilion dv6628us notebook

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What else? dv6628us laptop, ac power not recognized be computer, i tried a new ac adapter and battery and the problem does not go away. how can i fix my pc?

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You need to go into BIOS by pressing F2 at startup and then choose the option saying restore defaults.

Once this is done. Visit the manufacturer's website and the download the latest BIOS. Once this is done the AC adapter will be recognized. It has nothing to do with the Hardware itself

Posted on Sep 13, 2009

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Dell m5110 laptop won't charge new battery and ac adapter is not recognized in bios


Try another AC cord/charger with the EXACT same specs as original. Is the battery a genuine Dell battery, if not return it? Some aftermarket laptop batteries don't play well with your computer, the pin-out connections aren't correct and MAY be a fire hazard.

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My Acer aspire 4935 is not recognizing the AC adapter. When ever I shutdown the system and connects the AC adapter, it works and the charging LED lights up. Once I press the power button to boot the...


Problem description:The battery charges only when the laptop turned off. The battery charge LED lights up as normal and the battery gets charged to 100% while the laptop is off.
When the laptop is turned on, the battery charge LED goes off even if the adapter is still plugged in.
Possible cause:1. AC power adapter failure.
2. Battery failure.
3. Broken/loose power jack.
4. Motherboard failure.
Possible troubleshooting steps and repair solution:1. This problem could be related to a faulty AC power adapter. It's possible that the AC adapter doesn't provide enough power when plugged into the laptop. To find out if this is your problem, you'll have to test the laptop with another working adapter.Replace the adapter if needed.
http://www.chargerbuy.com/replacement-acer-aspire-9400-ac-adapter-19v-3-42a.html

2. There is a slight chance that you have bad battery. Test the laptop with a know good battery and replace the faulty one if needed.

3. The battery charge problem could be related to the power jack. Maybe the jack is broken or not making good contact with the motherboard. It is necessary to remove the motherboard and take a closer look at the power jack. Resolder or replace the jack if needed.

4. If the power jack is in a good working shape and new power adapter with battery do not fix the problem, most likely you have a faulty motherboard. Replace the motherboard if needed.

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2 Answers

How do I get my computer to recognized my new ac power adapter?


The computer doesn't need any drivers to recognize an AC Adapter. If you have purchased the correct AC Adapter for your laptop then it should just work when you plug it in. If it does not then my guess is either you have received a faulty AC Adapter or the DC Jack which you plug into in the back of the laptop is bad.
I am assuming your battery is dead and when you plug it in and turn it on nothing happens?
You can also try taking the battery out and try to power it on with the AC Adapter plugged in.

The Dell Latitude D610 takes a PA-10 or PA12 AC Adapter. It's 65W or 90W

For 90 watt Adapter the output voltage on your AC Adapter label should read 19.5V and 4.62A
At least that's what the Dell brand reads so it should be close to that.

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Hi, it seem as if your battery is faulty you should try another battery to see if the computer will recognize when it is charging, you can also try your battery in another compaq presario computer to see if it will have the same problem.

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I just bought a replacement 9 cell battery and a 90 watt power adapter for my Dell E1505. With the new battery and power adapter my battery indicator light keeps flashing green and the battery doesn't...


If a new DELL ac adapter (3rd party Adapters are not recognized and the charging circuit is disabled) and a new battery doesn't resolve then the charging circuit on the motherboard is bad

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I had the battery not recognized on boot up. then


the Dell AC adapter has a sensing pin so the bios can determine the wattage of the adapter. If the system cannot ID the adapter, the battery charger circuit is disabled. You'll need a functional DELL ac adapter to get the battery to charge

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1 Answer

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You cannot update your BIOS on battery power because if your battery dies while updating the BIOS, your PC will not function at all because the BIOS would be corrupt. So your PC won't take the chance of that happening.... smart PC..

Your PC doesn't recognize your A/C adapter?... then you either have a bad A/C adapter, or a bad charger port on your motherboard. either way you will have to buy one or the other in order to update your BIOS.

you shouldn't NEED to update your BIOS... u can live with an older version

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The Dell 1501 ac adapter (possibly other Dell’s as well) has been known to be problematic because of its lack of a plug to jack secure fit. You will notice that the plug can all too easily be pulled from the jack, as opposed to other systems where the plug fits more securely onto the jack. The plug and jack combination is poorly designed so that over time, the plug will come unseated depending on how much movement the machine is subjected to. This will result in power error messages or outright power-up failure. So before assuming you have a faulty adapter, make sure that it is not just a loose plug that is causing the problem. If you look inside the jack, you will notice that there is a 3mm region of non-conductive material nearest the surface of the jack. Use a strip of standard electrical tape 3mm wide and long enough and wrap it around the base of the plug (you may need more than one layer of tape to get a good fit). I have used this method to secure my plug and it has served me well. If the tape comes undone over time, just simply replace it. A more “elegant” method would be to use an “O” ring of the appropriate size (about 6mm) around the base of the plug in lieu of the tape.

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You might try cleaning the battery compartment. Makeing sure there are no damaged pins. Often times even a single messed up pin will cause this. Also this is a very good indication of adaptor failure. If you haven't allready I suggest getting another ac adapter specific to you machine. Even a substitute will casue the same issue you are now experianceing.

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