Question about HP Pavilion dv9000z Notebook

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Won't Boot, power cord bad or perhaps female jack that accepts the cord. mine is a HP laptop dv7000

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  • marktyan
    marktyan May 11, 2010

    pavilions commonly have problems with their mounting of the adapter to the motherboard.. check that the green light is on on the power supply first does the battery get warm during charging does the power adapter in the notebook jiggle around get backwith me when you have more details

  • cokeandcandy May 11, 2010

    have you checked the power cords with a volt meter?

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It is most likely the female jack your adapter plugs into. Many laptops can have this port break if the laptop is put into a bag, etc with the power chord attached. Since it is attached to the main board itself, this is very hard to fix. Some vendors however will cover it under the manufacturer's warranty.

Posted on Oct 01, 2009

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Hello.The most common reasons for power issues are the battery, power jack and power adapter/cord.Power off and remove the battery. If the laptop powers on with just the adapter connected, your battery is faulty.If you move/wiggle the hp pavilion dv6700 power adapter at the point where it connects to the laptop, and the power goes off and on, the power jack is the problem.The power jack is inside the laptop and either needs soldering or replacement. If a power jack problem, it should be addressed by someone knowledgeable.If no change, the power adapter is probably faulty and needs replacement.Hope this helps.

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If you move/wiggle the power adapter at the point where it connects to the laptop, and the power goes off and on, the power jack is the problem.The

power jack is inside the laptop and either needs soldering or replacement. If a power jack problem, it should be addressed by someone knowledgeable.

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Sounds like your DC Power Jack where the Power Cord plugs into the computer is bad.

Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.


If the DC Power Jack is bad, then eventually the battery is going to die and you won't be able to boot your laptop. If the dc power jack is bad, the ac adapter power cord can't charge the battery.

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2 Answers

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When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button. And if that's true maybe you was operating off the battery the last time you had it on and since the power cord is bad, it was not charging the battery so the battery is drained and the power cord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove the Battery, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in (leave the battery out) and hit the power button to see if it boots. If it does, you can put the battery back in and let it charge.


Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.


Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Remove the Battery, Remove the cover that houses the memory on the bottom of the laptop then remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

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1 Answer

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What do you mean won't switch on? Does it try to switch on?

What happens when you hit the power button?

Remove the Power Cord, Remove the battery, Open the memory cover on bottom of laptop and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

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1 Answer

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1 Answer

The battery on my laptop stopped charging, but was working for a over a week, then it was acting funny and slow.. I shut down moved to another room and it won't boot up! The light doesn't come on...


I think your power cord is bad. It probably was not charging the battery at all and so now all your battery power has drained since you were running on it. Once the battery power is drained and if the AC Adapter Power Cord is not working the computer will not boot because it has no power source.

Some AC Adapter & Power Cords have lights on them to let you know when it is plugged in if it is working. Normally when you plug the power cord in the laptop somewhere on the laptop lights up to let you know it is receiving power. Sometimes the light is where you plug it in, sometimes at the front of the laptop or right above the keyboard area.

I thing you need a power cord. And don't settle for one of the one size fits all (with a removable tip designed to fit any laptop) that the big box stores will sell you.

If your power cord is good and the laptop is not receiving power then the problem could be your DC Power Jack where the power cord plugs into the computer.

Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.

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1 Answer

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Is this the original power adapter, or a replacement. If it's an original and you're having this problem, then you're probably going to need to get the female DC Jack on the motherboard re-soldered or replaced. If your power supply\adapter isn't the original one, then it could be that the replacement you got is not the correct replacement for your laptop. It could still also be that your female DC Jack has gone bad and needs to be re-soldered or replaced. Those are the 2 most likely reasons for your problem of the battery not charging.

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