ASUS K8N e-deluxe BUZZING !

[a]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

Hello !

I have one problem and mybe you guys can help me out.
I bought K8N e-deluxe motherboard from ASUS.
Now that it is assembled whenever my ADSL modem is on I get buzzing sound
from my motherboard itself (I think it is those small coils with ferrite
core near the processor.

In the PCshop they gave me new board and it has same problem.
Buzzing stops when I stop the modem with Safely Remove the Hardware thing
from the tray. Also buzzing stops (sometimes) for a moment when i move my
scroll wheel on mouse (weird).

I suspected that modem is faulty maybe but when the modem is not connected
and I plug USB data cable of my cellphone I also get buzzing.

I am loosing my mind ... my computer is built with silent components and the
buzz is KILLING ME !!!

Thank you for your help

Bye

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On Fri, 21 Jan 2005 04:49:23 +0100, "a" <a@aa.aa> wrote:

>Hello !
>
>I have one problem and mybe you guys can help me out.
>I bought K8N e-deluxe motherboard from ASUS.
>Now that it is assembled whenever my ADSL modem is on I get buzzing sound
>from my motherboard itself (I think it is those small coils with ferrite
>core near the processor.
>
>In the PCshop they gave me new board and it has same problem.
>Buzzing stops when I stop the modem with Safely Remove the Hardware thing
>from the tray. Also buzzing stops (sometimes) for a moment when i move my
>scroll wheel on mouse (weird).
>
>I suspected that modem is faulty maybe but when the modem is not connected
>and I plug USB data cable of my cellphone I also get buzzing.
>
>I am loosing my mind ... my computer is built with silent components and the
>buzz is KILLING ME !!!
>
>Thank you for your help
>
>Bye
>


It's a bit odd that you're noticing the buzzing relating to
the modem, but regardless, isolate which component is
buzzing. All onboard components are low-voltage, it is safe
to "feel around" and firmly grasp the inductors (small coils
with...).

So you grasp one on the sides, it'll stop or at very least
noticably reduce noise if that's it. Having isolated the
part, you can ilberally coat it with epoxy, or do something
to change the switching frequency of the circuit... if that
will do enough. Depending on which inductor, changing the
input voltage might help (if you have a POT in your power
supply), or changing the CPU vcore slightly. Either may not
be enough, and either are for those experienced in such
things already. The epoxy is the safer and easier method,
or just return the board and buy a different make and/or
model.

The modem though is a wildcard in this, perhaps it's a
different inductor than the two large ones.

 

[steveh]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

"kony" <spam@spam.com> wrote in message
news:7e41v05tnneeggg3knfg8i6uo3c1llgjf7@4ax.com...
> On Fri, 21 Jan 2005 04:49:23 +0100, "a" <a@aa.aa> wrote:
>
>>Hello !
>>
>>I have one problem and mybe you guys can help me out.
>>I bought K8N e-deluxe motherboard from ASUS.
>>Now that it is assembled whenever my ADSL modem is on I get buzzing sound
>>from my motherboard itself (I think it is those small coils with ferrite
>>core near the processor.
>>
>>In the PCshop they gave me new board and it has same problem.
>>Buzzing stops when I stop the modem with Safely Remove the Hardware thing
>>from the tray. Also buzzing stops (sometimes) for a moment when i move my
>>scroll wheel on mouse (weird).
>>
>>I suspected that modem is faulty maybe but when the modem is not connected
>>and I plug USB data cable of my cellphone I also get buzzing.
>>
>>I am loosing my mind ... my computer is built with silent components and
>>the
>>buzz is KILLING ME !!!
>>
>>Thank you for your help
>>
>>Bye
>>
>
>
> It's a bit odd that you're noticing the buzzing relating to
> the modem, but regardless, isolate which component is
> buzzing. All onboard components are low-voltage, it is safe
> to "feel around" and firmly grasp the inductors (small coils
> with...).
>
> So you grasp one on the sides, it'll stop or at very least
> noticably reduce noise if that's it. Having isolated the
> part, you can ilberally coat it with epoxy, or do something
> to change the switching frequency of the circuit... if that
> will do enough. Depending on which inductor, changing the
> input voltage might help (if you have a POT in your power
> supply), or changing the CPU vcore slightly. Either may not
> be enough, and either are for those experienced in such
> things already. The epoxy is the safer and easier method,
> or just return the board and buy a different make and/or
> model.
>
> The modem though is a wildcard in this, perhaps it's a
> different inductor than the two large ones.

Or perhaps he should try the modem in a different PC or mobo to see if it
causes any problems there.
If it only does this with the modem, and not any other USB device plugged
into the same port, wouldn't you begin to suspect the modem?

SteveH

 

[a]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

I ruled out the modem because my USB data cable for cellphone is causing
buzzing as well

Another weird thing I noticed is when I start online game Americas Army
motherboard stops buzzing ??? and it only buzz rarely when HDD is active for
half of second or so
Maybe to test it with another power supply ?


> If it only does this with the modem, and not any other USB device plugged
> into the same port, wouldn't you begin to suspect the modem?
>
> SteveH
>

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

I'm having the same problem with my board, it's driving me nuts. Tried
changing USB cables and opening up the case to see if anything was
wrong. But I'm still getting the buzzing! :x

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

I still could not get rid fthe buzzing, finally got so fed up, I
binned my USB ADSL modem and bought a Internal PCI one. No more
buzzing. Yippe!!! :lol:

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On 6 Mar 2005 13:17:07 -0500,
sanjeev23@lycos.co-dot-uk.no-spam.invalid (ks1234) wrote:

>I still could not get rid fthe buzzing, finally got so fed up, I
>binned my USB ADSL modem and bought a Internal PCI one. No more
>buzzing. Yippe!!! :lol:

"Usually" that's caused by noisey inductors (wire-wound
ferrite doughnut or other shape) and can be quieted and/or
completely eliminated by coating the inductor with varnish,
or easiest might be temp-resistant 5 minute epoxy (for
example, "JBWeld Kwik" is one popular alternative, available
at many discount & hardware stores in the US).

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

Thanks Kony, will try that.

 

[Jose]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

I just bough an Asus K8N E Deluxe and I'm getting the same exact
problem! (

I have a usb mouse connected which is noiseless but whenever I connect
my pocketpc usb cable (I've tried every usb port on my pc) it starts
making this extremely annoyng screeching/buzzing sound!

Isn't there a way to avoid this without having to fidlle with the
connectors?

kony <spam@spam.com> wrote in message news:<25lo21h457dnpgsju4n5nuu2hbt39le34h@4ax.com>...
> On 6 Mar 2005 13:17:07 -0500,
> sanjeev23@lycos.co-dot-uk.no-spam.invalid (ks1234) wrote:
>
> >I still could not get rid fthe buzzing, finally got so fed up, I
> >binned my USB ADSL modem and bought a Internal PCI one. No more
> >buzzing. Yippe!!! :lol:
>
> "Usually" that's caused by noisey inductors (wire-wound
> ferrite doughnut or other shape) and can be quieted and/or
> completely eliminated by coating the inductor with varnish,
> or easiest might be temp-resistant 5 minute epoxy (for
> example, "JBWeld Kwik" is one popular alternative, available
> at many discount & hardware stores in the US).