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  #1  
Old August 19th, 2018, 11:13 AM
lcyber lcyber is offline
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High pitch buzzing lasts for two minutes before log in

On turning on Acer laptop there is a pulsating buzzing that lasts for about two minutes before stoping.What on earth can this be
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  #2  
Old August 20th, 2018, 03:56 AM
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Murf Murf is offline
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Could be the fan hold it up to your ear.
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  #3  
Old August 20th, 2018, 03:19 PM
lcyber lcyber is offline
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where is the fan in a tablet,does it involve taking the back off
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Old August 20th, 2018, 03:42 PM
Digerati Digerati is offline
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Can you tell if the buzzing is coming from the speakers? Or is it mechanical buzz due to something scraping something that is moving fast?

Quote:
On turning on Acer laptop...
...in a tablet...
Which is it? A laptop or a tablet?

What is the make and model number?

If really a "tablet", it probably has no fan (or any moving parts). So it could be coil whine but more likely interference buzz through the speakers.
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Old August 20th, 2018, 08:23 PM
lcyber lcyber is offline
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It's a laptop I referred to it as a tablet as a previous post Dig said that as they are not meant to be on someones lap as they need an airflow they should be referred to as a tablet (If I remember correctly .In my ignorance I thought a tablet and notebook were the same thing.Used on a lap there would notbe sufficient airflow.Its an Acer 5742
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  #6  
Old August 20th, 2018, 08:34 PM
Digerati Digerati is offline
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Quote:
It's a laptop I referred to it as a tablet as a previous post Dig said that as they are not meant to be on someones lap as they need an airflow they should be referred to as a tablet (If I remember correctly
Sorry, but you do not remember correctly. I said laptops should not be used on laps so I try to refer to them as notebooks.

Tablets are different.

You still did not answer my first questions, however. Can you tell if the buzzing is coming from the speakers? Or is it mechanical buzz due to something scraping something that is moving fast?
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  #7  
Old August 22nd, 2018, 07:29 PM
lcyber lcyber is offline
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The buzzing has nowstoppedand I couldnt tell where it came froms I,m not sure where the speakers are located on this notebook.
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Old August 25th, 2018, 12:26 PM
lcyber lcyber is offline
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it is coming from the speaker it sems
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Old August 25th, 2018, 01:08 PM
lcyber lcyber is offline
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Before i unscrew the back of this notepad is there anything I should be aware of in case I do damage
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  #10  
Old August 25th, 2018, 02:49 PM
Digerati Digerati is offline
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Make sure you remove the power supply and remove the battery. Then make sure you keep yourself and the notebook at the same ground potential to avoid any static discharges.
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  #11  
Old August 26th, 2018, 09:56 AM
lcyber lcyber is offline
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What signs do I look for as without power or battery,I would not be able to see signs of parts scraping something,I am not sure what I should look for
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  #12  
Old August 26th, 2018, 04:42 PM
Digerati Digerati is offline
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I am confused. You said the noise stopped. Then you said it was coming from the speakers. Opening the case will not reveal anything if the noise is coming from the speakers.
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  #13  
Old August 26th, 2018, 10:31 PM
lcyber lcyber is offline
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the noise stopped but restarted again.I am guessin fhe source is from the speaker the sound comes from a circular disc about 2 inches diameter with slotted air holes.
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  #14  
Old August 27th, 2018, 02:54 PM
Digerati Digerati is offline
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If a speaker, you should be able to mute the sound or turn up or down the volume with the applicable keyboard keys.
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  #15  
Old August 28th, 2018, 02:03 PM
lcyber lcyber is offline
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Unable to mute the sound as mute is un responsive
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