Wireless router makes sound :)

Hi,

I just got my wireless router and set up the network, everything seems to
work fine, I am just wondering if it is normal that the router is not
silent. It makes some constant beep, very high tone, not loud at all, only
possible to hear when it is quiet around. But still...it makes sound
Anybody knows why and if it is ok?

On Fri, 8 Oct 2004 14:39:58 +0200, "MFY" <(E-Mail Removed)> wrote:

>I just got my wireless router and set up the network, everything seems to
>work fine, I am just wondering if it is normal that the router is not
>silent. It makes some constant beep, very high tone, not loud at all, only
>possible to hear when it is quiet around. But still...it makes sound
>Anybody knows why and if it is ok?

It's not normal and I have a guess(tm). Many routers use highly
efficient switching power supplies. Look for an LM25xx regulator in a
TO-3 package. Nearby is an inductor (coil) that is part of the
regulator circuit. If the windings are loose, or the core is cracked,
it will make some noise. The switcher operates at up to 150KHz, so
your listening to some sub-resonant induced vibration. A little wax
or hot melt glue should stop the noise.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

Jeff Liebermann wrote:

> On Fri, 8 Oct 2004 14:39:58 +0200, "MFY" <(E-Mail Removed)> wrote:
>
>>I just got my wireless router and set up the network, everything seems to
>>work fine, I am just wondering if it is normal that the router is not
>>silent. It makes some constant beep, very high tone, not loud at all, only
>>possible to hear when it is quiet around. But still...it makes sound
>>Anybody knows why and if it is ok?
>
> It's not normal and I have a guess(tm). Many routers use highly
> efficient switching power supplies. Look for an LM25xx regulator in a
> TO-3 package. Nearby is an inductor (coil) that is part of the
> regulator circuit. If the windings are loose, or the core is cracked,
> it will make some noise. The switcher operates at up to 150KHz, so
> your listening to some sub-resonant induced vibration. A little wax
> or hot melt glue should stop the noise.

Does the sound come from the router or the power supply?
If it is the power supply you may replace it. Make sure to use one with the
right polarization, voltage and enough power. Most routers need about 10W.

In case it comes from the route: it's maybe the best idea to bring it back
to the dealer. Waxing or glueing it should do at least one thing: void your
warranty.

Thomas

On Fri, 8 Oct 2004 14:39:58 +0200, "MFY" <(E-Mail Removed)> wrote:

>I just got my wireless router and set up the network, everything seems to
>work fine, I am just wondering if it is normal that the router is not
>silent. It makes some constant beep, very high tone, not loud at all, only
>possible to hear when it is quiet around. But still...it makes sound
>Anybody knows why and if it is ok?

Looks like routers aren't the only thing that make noises.
This is from the Efficient Networks 5360 ADSL modem, which apparently
makes a "hissing" sound:
http://kb.efficient.com/display/1n/a...94&r=0.4748346



--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831.336.2558 voice http://www.LearnByDestroying.com
# (E-Mail Removed)
# 831.421.6491 digital_pager (E-Mail Removed) AE6KS

> Does the sound come from the router or the power supply?
> If it is the power supply you may replace it. Make sure to use one with
> the
> right polarization, voltage and enough power. Most routers need about 10W.
>
> In case it comes from the route: it's maybe the best idea to bring it back
> to the dealer. Waxing or glueing it should do at least one thing: void
> your
> warranty.
>
I also thought it wasn't best idea to 'dig' inside it as it is very new.
Yep, the sound comes from the inside of the router. (D-Link DI-624)
So, you guys claim that the router should be completely 100% silent?
If so I will contct the dealer.

MFY wrote:

> Yep, the sound comes from the inside of the router. (D-Link DI-624)
> So, you guys claim that the router should be completely 100% silent?
> If so I will contct the dealer.

My DI-624+ is silent. A constant noise may be caused by a bad capacitor. In
worst cases it may explore, which doesn't mean it will blow up the router,
but it will mess it up with the liquid inside.

Thomas

> Looks like routers aren't the only thing that make noises.
> This is from the Efficient Networks 5360 ADSL modem, which apparently
> makes a "hissing" sound:
> http://kb.efficient.com/display/1n/a...94&r=0.4748346
>
I am still very confused :| Before I go back to the dealer I would like to
be sure that the sound means that something is not completely right.
Is the router also retraining some connection as in the case of the modem?
Is there any real reason for it to make the sound?

My netgear gw511t also makes noise. So have many of my just plain normal
10/100 lan cards. I think I just hear very high pictched sounds. Maybe you
just have super acute hearing?

"MFY" <(E-Mail Removed)> wrote in message news:ckb57r$mpg$(E-Mail Removed)...
>
> > Looks like routers aren't the only thing that make noises.
> > This is from the Efficient Networks 5360 ADSL modem, which apparently
> > makes a "hissing" sound:
> >
http://kb.efficient.com/display/1n/a...=45394&r=0.474
8346
> >
> I am still very confused :| Before I go back to the dealer I would like to
> be sure that the sound means that something is not completely right.
> Is the router also retraining some connection as in the case of the modem?
> Is there any real reason for it to make the sound?
>
>

> My DI-624+ is silent. A constant noise may be caused by a bad capacitor.
> In
> worst cases it may explore, which doesn't mean it will blow up the router,
> but it will mess it up with the liquid inside.
>

I have just read a following text:
http://www.practicallynetworked.com/support/hissing.htm
But still not sure wether it is my case. If your router is silent, does it
mean that my sould be too?

Thanks for all advises

> My netgear gw511t also makes noise. So have many of my just plain normal
> 10/100 lan cards. I think I just hear very high pictched sounds. Maybe you
> just have super acute hearing?
>
I don't know about my hearing The worst thing is that I can't consult it
with anyone right now, because I am home alone as my husband is abroad
BTW if I knew that the sound is ok then it would be a lot less annoying .
The sound is prety quiet and can hear it only from 1-1,5 meter when it is
completely silent around.