Question about Acer Extensa EX4420-5239 Notebook

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I have an Acer Extensa 4420 and it will not power on. It was working fine and then nothing. No sound, no light, nothing. Removed the battery and used the power supply still nothing. Help! need this laptop for school.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 100 Answers

SOURCE: my acer extensa 4420 5239 turn on for a few second

There is a hardware issue... Could be ram if so you can fix yourself.
Take out one piece of ram at the bottom of the unit... If the problem still occurs then take out that ram and put the other piece back in and see where that leads you

Posted on Aug 07, 2009

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herbalgarden
  • 344 Answers

SOURCE: the touchpad on my acer extensa 4420 does not

here is something for you to try, being I am typing to you on an ACER EXTENSA 4420-5239 push and hold the function key (its next to the window key at the bottom of the keyboard and has a blue Fn on it now while holding it down press f7 this will disable or enable the touchpad

Posted on Sep 28, 2009

bob_computer
  • 3153 Answers

SOURCE: trying to disassemble an Acer Extensa 4420

Only do this if you feel competent in doing so.

Pulling apart laptops is not for the faint of heart.

If you really must do it there are some
good guides here
.

An alternative is to get a can of compressed air used to clean computers. Put the nozzle on and spray it in every hole you can see without putting the nozzle itself inside the laptop.

Do this outside with glasses on.

You may also want to remove the hard drive and ROM drive.

Take a
peek here for more ideas of what is involved.

There are a few are tips for various things in there.

DON'T touch the CPU cooler unless you know what you are doing and have some thermal grease for CPUs to hand.

To make newer laptops last longer between cleaning a good 3 fan cooling pad is suggested.
never use a laptop on soft surfaces as the ventilation can act as a mini vacuum cleaner and encourage dirt build up.
Soft surfaces also block the vents causing fans to run more and burn out sooner.
Hope this gives you the information you need

Bob
ExMod

It would be very decent of you to consider the quality of our experts answers and judge them accordingly as you pass through FixYa.

Thank you

Posted on Jan 05, 2010

  • 1 Answer

SOURCE: Acer extensa 5630ez won?t turn on.

Can you give a location of R138?
Is it on the easy side? E.q. the side of the motherboard wich is accessible by removing the bottom plate? I see Q24, located close to CPU. If possible, post a picture of R138, with some components visible.

Posted on May 11, 2010

  • 1 Answer

SOURCE: how do i restore my

acer extansa 4220 how to reset motherboard bios password

Posted on Jan 12, 2011

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My laptop acer extensa 4420 5239 will not power on.The battery light goes green if i charged it fine. It seems that the switch is having a problem or might be the power supply. how would i know?. please...


Probably there is a problem with your battery charger or power supply. It might not charging your battery. The only reason why the laptop would not power on if there is no power supply coming in, either from a battery or a direct connection from the power supply. You can check your battery charger or power supply using a multimeter. Check if there is a voltage reading coming from your charger.

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I have the same problem my acer extensa 4420


I had a similar problem with my Acer Extensa 4420. After reviewing all the recommended solutions, I decided to open the case to see if I could see a disconnected cable or other easy explanation.

However, when I pulled the heatsink off the CPU and found that the heatsink compound had almost completely dried out. I cleaned the heatsink and applied new compound, then reinstalled the heatsink and put the computer back together.

It works great. Interestingly, this is the same problem that plagued the XBox 360 and the "red rings of death" failure. Just an option that is easier than pulling the entire case apart.

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My Acer extensa 4420 can't start anymore.... when I press the power button.... it seems like it starts searching for the hard drive... I have no video.... no sound.... nothing.... and then, it restarts...


I think the problem is with the ATI Video drivers. I had the same problem and I went to the ATI site and updated my drivers and the problem has not occurred since. Mine was ATI radeon x1250. Windows Vista Home Premium 32-bit. The graphics card is integrated on the mother board.

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