Question about Acer Extensa 5420-5687 Notebook

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My acer extensa 5420 will not power on till it is warm

Exactly the same problem with the video below.the laptop will not boot up till it get warm enough.what the problem with it?Could anyone help me please?Thank you very much. http://www.youtube.com/watch?v=Tb8hzSqWnjs

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  • 2 Answers

Your laptop problem is cooling fan. Please open the laptop & clean the dust over the fan. Otherwise your fan must be replaced by new one..

Posted on Jan 12, 2013

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6ya6ya
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Posted on Jan 02, 2017

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pumpkinman
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SOURCE: Acer Extensa 5420 Repair Service Manual

more info please

Posted on Aug 28, 2009

byteguy
  • 2229 Answers

SOURCE: please check my youtube video to understand my

Great presentation of your problem.
One thing I would check is the screen saver. You say as long as you use the computer it looks normal. Look at your screen saver settings to see if the lined appearing coincide with the screen saver time.
With computer parts, failure on a periodic basis (based on time) usually indicated a heat problem. This does not appear to be the problem in your case, as you say you can use the computer for an extended period without a problem. This is why I was suggesting a screen saver problem. You might even try a different screen saver just to test this. Possibly the part of windows that controls the screen saver (and don't ask me where that is, 'cause I haven't a clue) is corrupt.

Good luck.

Posted on Jul 19, 2011

  • 6771 Answers

SOURCE: www.batteriamondo.com

Thank you.

Posted on Aug 31, 2012

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1 Answer

Acer extensa 5420 bios


Clean out the cooling fan/vents, etc. and try again. If the fan isn't turning, it won't boot up.
If that doesn't work, you may need to disconnect the power supply and battery and then hold down the power button for 30-60 seconds. This will discharge stored energy from your laptop. I'm not sure of the specifics, but this happens to mine every 12-18 months or so. Once you've done that, reconnect the charger and battery and try to power up again. It should work now.
If these steps don't fix it, you have serious problems.

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