Best Way of killing coil whine?

gb115b · Post by **gb115b** » Sun Oct 28, 2007 6:45 am

any suggestions? my router is driving me up the wall!

thejamppa · Post by **thejamppa** » Sun Oct 28, 2007 8:33 am

change router or get long cable and relocate router into another room.

Ashex · Post by **Ashex** » Mon Oct 29, 2007 6:40 pm

Wrap it in foam, duct tape it, wrap it in more foam, and insulate it.
Then enjoy the silence for the 15 minutes it takes for it to overheat and fry.

There isn't really much that can be done about coil whine other then replacing the component, which is a really bad idea unless you know how to solder straight to pcb.

gb115b · Post by **gb115b** » Tue Oct 30, 2007 2:52 am

any suggestions for a quiet router in that case...

i've seen reports of blu-tac and silicone being used on the coil to stop whine...any verification?

pipperoni · Post by **pipperoni** » Tue Oct 30, 2007 5:00 am

If you look for ancient threads in the Sudhian Shuttle Forums (I think the SB61G2s were pretty bad), a lot of people tackled the coil whine using RTV. They pretty much just dabbed it on, let it set, I didn't see any complaints about the solution.

wwenze · Post by **wwenze** » Mon Nov 12, 2007 12:51 pm

Ashex wrote:Wrap it in foam, duct tape it, wrap it in more foam, and insulate it.
Then enjoy the silence for the 15 minutes it takes for it to overheat and fry.

There isn't really much that can be done about coil whine other then replacing the component, which is a really bad idea unless you know how to solder straight to pcb.

It won't overheat. Trust me, i've tried. As with those who posted in similar threads.

Heard that hot glue is good too, or even wax. But RTV is removable should you need to RMA.

The last time I tried RTV it didn't work though, too soft maybe?

gb115b · Post by **gb115b** » Mon Nov 12, 2007 3:51 pm

Brian · Post by **Brian** » Mon Nov 12, 2007 6:34 pm

RTV is like caulk. I bought some at the auto parts store to use on my car.

DrCR · Post by **DrCR** » Sat Nov 17, 2007 8:19 pm

I've heard epoxy is a good option too. I have a BEFSX41 I'm about to crack open myself.

DrCR

___________

Telamon · Post by **Telamon** » Wed Jan 02, 2008 4:42 pm

I've successfully stopped coil whine on an old Athlon XP motherboard with silicon aquarium sealant. In fact I think this was this thread that fixed me up a few years back. I hope this helps.

Edit: Didn't realize how old this thread was. Forgive me!

jaganath · Post by **jaganath** » Wed Jan 02, 2008 5:52 pm

Edit: Didn't realize how old this thread was. Forgive me!

no worries. coil whine/buzz is pretty much the hardest noise to kill, I have returned many motherboards because of it, any success stories are very valuable indeed.

DrCR · Post by **DrCR** » Wed Jan 02, 2008 7:10 pm

I think wer'e all going to be with jaganath on this one; any success story is indeed welcome.

Thanks for the silicon aquarium sealant recommendation. I've have yet to crack open that BEFSX41 lol. I've going to have to pay Ace Hardware a visit.

DrCR

truckman · Post by **truckman** » Wed Jan 02, 2008 10:30 pm

I would think that a substance that would penetrate the coil windings would be the most effective. There are couple of things that I've recently worked with might be worth trying.

The first is silicon windshield sealant. It's a lot runnier than the other silicon sealants and caulks that I've used in the past, which tend to form globs that just sit in place. If there isn't a way to keep it confined until it cures, it might be too runny and flow out the bottom of the coil.

The other is called "liquid electrical tape". It comes in a screw-top can with a brush applicator. I found it in the electrical department at a local hardware store along side the heat shrink tubing and crimp connectors. I used some to seal a repair to my car's wiring harness. It is very sticky before it cures and is flexible after it cures. It is flammable, and emits nasty vapors while it cures, so you'll want to apply it in a well ventilated area and wait until it is cured before applying power. It is available in various pretty colors

Bluefront · Post by **Bluefront** » Thu Jan 03, 2008 2:06 am

Automotive silicone sealers would be the first thing to try. There are certain types labeled "hi-temp", which would be best. These can be used on exhaust parts on cars, so computer usage should be no sweat.

Wedge · Post by **Wedge** » Sun Jan 06, 2008 6:15 am

Is it possible that I'm hearing "coil wine" on a new video card? My PC emits a high-pitched tone every time I start playing Crysis. It didn't start happening until I bought the 8800GT.

And if it is coil whine from my video card, are there literally "coils" on the card where I can apply some of these sealants that you guys have suggested?

seraphyn · Post by **seraphyn** » Sun Jan 06, 2008 6:30 am

I don't know if it's coil whine, but another guy posted on this forum that he had such noise from his 8800GT as well. I too, have a slight noise coming from my 8800GT, even though it runs passive.

mentalswe · Post by **mentalswe** » Tue Jan 08, 2008 7:52 am

My PC emits a high-pitched tone every time I start playing Crysis

I hear the same thing with my 8800GTX but only during the ea/crytek/intro-movie. In the actual game the card is silent, apart from the fan that is.

JaYp146 · Post by **JaYp146** » Tue Jan 08, 2008 9:35 am

In regard to power supplies, I've found that increasing the load on a power supply sometimes eliminates coil whine.

cloneman · Post by **cloneman** » Tue Jan 08, 2008 12:11 pm

I've been very lucky with my routers.

My Linksys WRT54g v2 (modded with DD-WRT) is dead silent. All my networking hardware is totally 0db, even with your ear pressed against the unit (!)

This includes:

- the router mentioned above
- a wired linksys router
- cheap trendnet wireless router
- netgear 5 port switch
- speedstream 5360 DSL modem