It works good on battery but when AC adaptor is plug in the laptop cuts out and restart by itself.

the problem is in your laptop...maybe it damaged too when you plugged your old adaptor. you should check your laptop for a repair...maybe it needs to replace tha spare parts that may have been damaged.

hi,

You said laptop is working fine if just using the battery,that means that there is nothing wrong with the battery itself. Can yu please try to connect the laptop directly to the power outlet without using the battery just for the mean time,remove the battery and connect the AC adapter directly to the power outlet then power on the laptop,if nothing happens,that means that there is something wrong with the AC adapter itself or the power port on the laptop.
Hope this will help...

Take out the battery and then try the different ac adaptors. If you still get no lights on the laptop then the motherboard is bad and would need to be replaced. Just make sure that you know at least one of your ac adaptors are good.

If the adaptors have lights and they turn on then you know the ac adaptor your working with is good. Also make sure they are plugged into a good working outlet.

Hey alberto,
First off thanks for choosing Fixya.com. The Ac adapter itself could be bad or it could be the dc jack. And also the problem with your cpu fan could also be that the fan has gone out or the motherboard itself needs to be replaced.

as u said that when u plugged in the ac adaptor into the laptop it recognises that the ac adaptor is connected but it does not charge the laptop in this case what u can do is that if have the same charger extra then u can try with the another charger and if the other charger also does the same thing then in this case u need to replace the mmotherboard and if the other charger is working fine in this laptop then definately chage ur aac adaptor.....good luck...

thanks

if the touchpad is working fine with the battery and if it is not working with the ac adaptor then in this case u can try with the different ac adaptor and still if it does the same thing then uninstall and resintall the toouchpad driver and restart the computer and still if it does so with the ac adaptor then u need to open the laptop chasis and then u need to fix up the power supply connector in the motherboard where the power supply from the ac adaptor is not getting the adequate response from motherboard.

The battery needs to be conditioned. To condition a battery, plug in the AC adaptor and charge it to 100%. Unplug the AC adaptor and run the battery completely down to 0% or until the computer shuts itself down or goes into a hibernate mode. Once this occurs, plug the AC adaptor back in and fully re-charge the battery to 100% again. You should now be good to go.

Let me know what happens and if this has solved your problem. Thank you, Binary Bob

It sounds like a mother board problem since you upgraded the bios and got different results. Try plugging in the adapter and warming it up. Will the computer run without the battery? that will also let you know if it's the battery.

My initial thought was that your AC adapter may have a heat problem or failing after a while. Wrap it in plastic and put it in ice and see if it lasts longer. If you have the same problem there are other issues going on in the computer power system.

Hi

If the AC power light is blinking, try the following steps:

1 Cut off power to the computer by disconnecting the AC adaptor and removing the battery. The error condition will be interrupted, and the AC power light will stop flashing.

2 Put the battery back into the computer. Do not connect the AC adaptor. Try turning the computer on again. If the computer starts normally, the AC adaptor may be
defective and will need to be replaced. If the AC power light starts flashing, remove the battery, and continue with the steps below.

3 Connect the AC adaptor to the computer. Leave the battery out of the computer. Try turning the computer on again. If the computer starts normally, the battery may need charging, may be depleted, or may be defective. Turn the computer on, insert the battery, and then leave the computer running for several hours, which will deliver a slow, steady “trickle-charge” to the battery. Once the battery has been trickle-charged, it may begin working correctly again. If the trickle-charging does not prove effective, consider replacing the battery with a new one.

4 Connect the AC adaptor to a different power outlet, preferably in a different room. If the computer starts normally, there may be a problem with the AC outlet itself, or the voltage level available from it.

5 Verify that the AC adaptor is the correct unit for your computer model. The computer may not be able to start from an AC adaptor that is rated for less current (amperage) than the computer requires, even if the rated voltage is correct, and the plug fits correctly in the DC-IN socket. The labels on the bottom of the computer and the AC adaptor show the specifications for voltage ("V") and current ("A") for each device. The voltage level must match exactly. The amperage rating of the AC adaptor must be equal to or greater than that required by the computer

Regards
Mike

sounds like you have an intermittent problem with your AC adaptor or dc input jack. Does the light on the AC adaptor light up when you plug it in? If it does then your dc input jack may be faulty. If the light on the ac adaptor does not light then replace the ac adaptor. Good Luck!