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Will not power on

My laptop will not start up and I have just bought a new charger

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Then it is not the charger. Are there any lights showing on the laptop when you plug it in? Try wiggling the power cord attachment and see if you get any kind of connection. Could be the power jack on the motherboard quite common on all laptops. Could be bad ram module, cpu or motherboard. Need more information....

Posted on Feb 09, 2008

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2 Answers

AC adapter 4750z


The solution to your problem lies in one of the following three areas:

1.) Your charger is faulty and is therefore not able to pass power to your laptops battery.

2.) The charging connector on the laptop has come loose from the contacts. Therefore a bad connection.

3.) Your battery is faulty.

I think possibility 2 is the most likely, although you will have to test possibility 3 by removing the battery and plugging in your charger and seeing if the laptop powers on.If it does power on then that rules out possibility 1 and 2 leaving a faulty battery.

If you need to buy a new laptop charger, the following to adapters are for your reference:

Replacement Acer Aspire 4750 AC Adapter 65Watt 19V 3.42A

Replacement Acer Aspire 4750 AC Adapter 90Watt 19V 4.74A

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1 Answer

6 month old dell inspiron 1764 says can not identify a/c power adapter works with only the battery and works with charger will maintain around 50% but not charge


HI there,

In most instances, just as you've described yours, the culprit is usually the charger. It's not uncommon for the charging system in the charger to cease to function while the power function continues to work. This is particularly true of Dell chargers.

If the laptop is still under warranty, call Dell Support and they'll almost surely send you a new charger because this problem is considered to be a possible safety hazard.

Since Dell's standard factory warranty is for 1 year, they should be able to help you. If not, and you have to purchase a new battery on your own, be sure to purchase ONLY a Dell charger

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You need a replacement AC adapter, it's very cheap online.
1)Output Voltage is within +/- 5% of your old charger's output.
2) Output Current is the same or higher than that of your old charger.
3) Connector tip must fit securely into your laptop.

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1 Answer

Have a Gateway Laptop Computer Model #MT6708. Previously computer had blank screen and no power. Currently purchased new battery and power cord. Computer now operating screen and power is on. However, when...


First thing check that the battery charge light is on when the battery and the charger are connected.
If it is it indicates that the power supply is charging the battery,
If it isnt it may indicate a fault with the battery or that the charger is not compatable with the laptop or that there is a fault with the charger.
If the battery is charging then try running the laptop on battery only without the charger and on charger only without the battery.
This will eliminate which one is faulty.

You mentioned that if you wiggle the cord then the light comes on again.
Check to see if the charger end plug is lose or the actual port on the laptop is lose.
If the charger plug is lose then return to seller and make sure they gave you the correct charger. if the actual port on laptop is lose then perhaps u got a bad connection and you need electrician or local laptop technician to open it up and solder properly on motherboard.

Let me know how it goes.

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1 Answer

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Even if it's new it doesn't mean that it works. Either get another charger or power supply, or check the battery. But I'll go with the "new" charger.

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1 Answer

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Sometimes batteries need a full 24 hr initial charge before they will work. You would be advised not to use the M/C during this period. Also it will take several charges before the battery reaches it's optimal performance.

This could be the problem so it's worth a try.

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2 Answers

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The cause was high resistance in the charger, probably from a poor solder joint. It is likely your laptop was not damaged. You can use another charger.

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1 Answer

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Compare voltage and current (amps) from the original to the new. If the new one is different (voltage is lower, or current substantially lower), then it might not be an adequate replacement. If these are near identical, and you have the correct sized tip, there shouldn't be a problem with the new unit. Obviously, you could get an exact replacement supply $$. Also check online for replacements.

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