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Laptop wont turn on

When I plug the power supply into the laptop, the light on the power supply goes out and the laptop will not turn on.
This occurs with or with the battery in. The power supply works fine on another laptop.

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  • 358 Answers

What I suspect,is that the at the exact DC Port where you have to plug the adapter when you want to charge your laptop, some of the internal components are burnt. It might not be more than 2 though, if you can trace it very well. So don't consider changing your motherboard yet, until you have explored ALL possible options.
I wouldn't know if you can actually do this by yourself, or through a VERY good technician, who can help you to test the components inside the laptop, just at the tip of the DC Socket Port (but Inside the laptop). I handled a case like this before where I just had to change a very small capacitor inside the system at the exact point where the DC Current enters the Motherboard panel inside...and the laptop started working perfectly well...funny enough the owner was so happy and is still using it till today!
I would suggest that you get a good technician to try that for you...I really wished I could do it for you...but I'm sooooooooo far from your country...lol :)..(Nigeria). Hope this helps you better.
Sorry about the problem...trust me I understand!
Goodluck!

Posted on Jul 15, 2009

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Laptop wont power on


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If the led on the power supply turns off after connecting it to your laptop, the problem most likely lies with the power supply especially if the machine will run on battery power. This can be tested by

1. Turn the laptop off.

2. Remove the battery and power supply plug.

3. Press and hold the power button for at least 15 seconds to reset the laptop.

4. Replace the power supply plug into the laptop without replacing the battery.

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Is there a green light on your power supply that plugs in the wall? If not, the power supply is dead or there's a problem on the motherboard.
To troubleshoot, unplug the laptop from the power supply, unplug the power supply from the wall. Now, plug the power supply into the wall, you should see a green or blue light. If there's a plastic spot for the light but no light is coming on, replace the power supply - better to try a known working on before spending the money on a new replacement first.
If there is a light, plug it into the laptop. If the light goes out when you plug it in, there could be a motherboard problem and the board needs to be replaced or the power jack is damaged and you need a professional to replace it.
If the light is on the whole time, but laptop does not turn on, this could also mean that the board is still bad.
Regardless if it doesn't power up with a good power supply it is usually a motherboard problem and the board needs to be replaced.
Check with dell to see if its under warranty and they will send the parts needed and a tech to replace if it is. You can also ask about purchasing a warranty so your money is better spent to keep your laptop alive and put it towards something useful for the lngevity of the system instead of just paying for the part and a tech.

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try diconnecting the charger and holding down the power up button for longer, then try plugging in charger- turn on charger at wall then hold down power on button till power button on key lights up, i hope this helps you out ;)

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There is a small IC that Dell solders into their power supply as well as their batteries. When this parts fails you will have the type of problem you are having now. If you do a search on the web you will find a large number o sites that discuss this. Unfortunately there is no fix other than replacing your power supply. I had to do the same thing myself for the Dell laptop I use.

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Computer wont start, no signs of life, power supply is good and green light turs off when plugging into computer


Hi there
Sounds like a common problem
when you plug the power pack into the laptop its power light goes off because there is a fault. Most commonly this is connected with the plug or the socket into which it goes or the motherboard.
visually inspect the socket, if the central pin is loose thats your problem, if not then check the plug/jack bend the cable on it as these are prone to breaking. wiggle it around whilst checking the power button and status lights if none of that works then you need to strip the laptop and perform a continuity test on the first stage.
ie between socket and motherboard. please note for any sign of exposed cable and remember electricity hurts on contact be carefull. especially if you test motherboard for voltage.
ps the switch is pretty reliable and i would not poke anything in that hole just yet.

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