Question about Acer Extensa EX4420-5239 Notebook
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Posted on Jan 02, 2017
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
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
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
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Posted on Jan 05, 2010
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
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