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86 Posts

08-28-2019

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Re: Lenovo Y540 crackling sound

2019-08-28, 11:19 AM

Off topic, do you really have bios version 29WW, because newest it offers me is 28WW.

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Re: Lenovo Y540 crackling sound

2019-08-28, 11:28 AM
Yes my computer was installed with 29WW when it arrived 8 days ago.
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86 Posts

08-28-2019

CZ

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Re: Lenovo Y540 crackling sound

2019-08-28, 11:30 AM

That’s strange, I guess they will release it for all in a few days, how does it behave temps wise?

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100 Posts

06-01-2014

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Re: Lenovo Y540 crackling sound

2019-08-28, 11:36 AM

You can share 29WW BIOS by uploading. Its lying in c drive>BIOS>29WW

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Re: Lenovo Y540 crackling sound

2019-08-28, 12:19 PM

I am a radio amateur and often listen to weak signals from satellites via connected USB2 SDR receivers.
It gives me double problems. Partly crackling from audio and drop out from slow USB sped. Attaches audio file.
About 19 seconds from startup, I open a background application that draws about 30% extra load from the processor.

I have a 6 year old Lenovo Yoga pro 2 laptop that works well with my USB2 SDR receivers but which is otherwise pretty dull.

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Re: Lenovo Y540 crackling sound

2019-08-28, 12:36 PM

The BIOS folder contained only 28WW. When looking at Lenovo Vantage, 29WW is displayed. See attached picture.

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Re: Lenovo Y540 crackling sound

2019-08-28, 12:38 PM
I do not know. Has nothing to compare with.
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Re: Lenovo Y540 crackling sound

2019-08-28, 12:53 PM

That is weird. Go in BIOS by pressing F2 at startup to see true BIOS version

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Re: Lenovo Y540 crackling sound

2019-08-28, 13:03 PM
BIOS version: BHCN29WW
EC version: BHEC29WW
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Re: Lenovo Y540 crackling sound

2019-08-28, 13:05 PM

OK, use afterburner to see in game temperatures, press fn+Q to see if fans reach Max speeds. Coz with 27 n 28 version Max fans are not happening. Try game like apex legends

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