DUO 13: Buzz and high battery loss mode "sleep"

I notice a rather strange problem and concern with my DUO 13, when I put it on sleep, I hear a very low hum coming from the center of the laptop computer, after a few hours this part Gets a little warmer and I get a significant (5-6% per hour) battery loss. Everyone has noticed this problem?

I tried to put the phone in airplane mode bofore enter in sleep (just to check if the feature "connected internet ' could be the reason), but I had the same noise behavior.

While the laptop is working I can't heard this noise, also if I put into Hibernate the laptop, this does not happen. Can adefective unit or it's normal behavior?

Cugel,

Battery loss of 5 to 6% per hour is a lot. I think that this is supposed to be 10% per hour the screen on while playing a movie. Can clarify you what you are doing when in mode 'sleep'?

Also a laptop computer in mode 'sleep' shouldn't be heat sensitive.

The hum that you describe sounds as it can come from inductors in the diet. It is usual for them to make some noise, but it is usually by ultrasound. At low enough power output maybe he can't spend fast enough without having really low efficiency, where the audible hum.

It could also be the audio circuit / speakers picking up some sort of interference if it sounds like it is coming from the speakers. How loud is it anyway? Can hear without putting your ear to the unit?

Tags: Sony Computers

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