Possible fix for coil whine - Overclock.net - An Overclocking Community
Forum Jump: 

Possible fix for coil whine

Reply
 
Thread Tools
post #1 of 21 (permalink) Old 08-17-2011, 03:44 PM - Thread Starter
Retired Staff
 
Phaedrus2129's Avatar
 
Join Date: Nov 2009
Location: Chino Hills, CA
Posts: 16,520
Rep: 1730 (Unique: 1138)
So your GPU has annoying coil whine, eh? Won't shut up? You've tried RMAing the card, or putting lacquer on the coils (or your GPU uses non-toroidal inductors that that doesn't work on), and nothing works? Here's a potential solution.

Overclock your card.

Overvolt it.

Do something that will change the amount of power the card draws.

Or replace your power supply with one of a different model.

The inductors in a graphics card are for the most part used in its VRM, or voltage regulation module. VRMs are a type of DC-DC switch-mode power supply, usually a synchronous multi-phase buck regulator. This means that it uses a bunch of "phases" in parallel, each consisting of a pair of transistors, an inductor, and a capacitor, to change the +12V input from your PSU to 1.xxV for your GPU to use.

In order to supply a different voltage or different current the transistors switch on and off at different frequencies. If the GPU demands more current, then that will cause a voltage drop across the inductor, which makes the transistors switch faster to keep the voltage where it needs to be. And the reverse. All this happens in microseconds.

An inductor stores electricity in a magnetic field. This magnetic field pushes and pulls on the ferrite core used in some inductors. When the voltage across the inductor changes, the magnetic field changes, and the inductor moves slightly. When the voltage changes very, very quickly (as is the case when switching transistors are changing its voltage thousands of times a second) the inductor vibrates. And that vibration, if it is between 20Hz and 20,000Hz, is audible to the human ear. Hence whine.

The frequency at which the switching transistors operates varies, but it's generally between 10,000Hz and 100,000Hz. If your GPU is whining, the transistors are switching at between 10,000 and 20,000Hz, or a primary harmonic of those frequencies. So if you want to stop the whining, you need to make the transistors operate at a different frequency.

So you change the amount of power drawn. Overclock and overvolt your GPU and the transistors will need to switch faster to provide power to the GPU, and if you're luck you'll bump them from 17,000Hz to 24,000Hz. Underclocking may work as well. And suddenly your GPU will whine no more.

You could also use a different PSU that outputs a slightly higher or lower voltage on the +12V rail, which will also change the frequency the transistors need to work at.



It won't work for everyone, and may not work all the time either. But it may help reduce the whine or the amount of time you hear it. It worked with my new HD6950. At stock, it's a real whiner. Unlocked, overclocked, overvolted, power cap raised... not a peep.

Burning books is like burning bras; after the adrenaline rush of the symbolic moment wears off all you're left with is a pile of ashes and unsupported boobs.
Phaedrus2129 is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 08-17-2011, 03:49 PM
Retired Staff
 
jach11's Avatar
 
Join Date: Jul 2010
Location: NYC
Posts: 4,506
Rep: 154 (Unique: 140)
Nice! never had a coil whine.
On another note.. Could you make your sig "less wider" ?



jach11 is offline  
post #3 of 21 (permalink) Old 08-17-2011, 03:50 PM - Thread Starter
Retired Staff
 
Phaedrus2129's Avatar
 
Join Date: Nov 2009
Location: Chino Hills, CA
Posts: 16,520
Rep: 1730 (Unique: 1138)
Quote:
Originally Posted by jach11;14619266 
Nice! never had a coil whine.
On another note.. Could you make your sig "less wider" ?

Better? wink.gif

Burning books is like burning bras; after the adrenaline rush of the symbolic moment wears off all you're left with is a pile of ashes and unsupported boobs.
Phaedrus2129 is offline  
Sponsored Links
Advertisement
 
post #4 of 21 (permalink) Old 08-17-2011, 03:52 PM
Retired Staff
 
jach11's Avatar
 
Join Date: Jul 2010
Location: NYC
Posts: 4,506
Rep: 154 (Unique: 140)
Quote:
Originally Posted by Phaedrus2129;14619280 
Better? wink.gif

yea much better biggrin.gif



jach11 is offline  
post #5 of 21 (permalink) Old 08-17-2011, 03:56 PM
WeAreMad! (yup, I'm back)
 
wermad's Avatar
 
Join Date: Jan 2010
Location: San Diego, Cali
Posts: 23,295
Rep: 906 (Unique: 620)
Very nice info smile.gif

Though, mine was coming from my old psu (ocz zx1000w) and it was a confirmed issue with their customer service. Replacement didn't have the noise biggrin.gif

"Rock Bottom Became The Solid Foundation On Which I Rebuilt My Life" J.K Rowling
Mont Blanc 2.0
(10 items)
CPU
Intel i7 6700K @ 4.5
Motherboard
Gigabyte GA-Z170X-Gaming G1
GPU
XFX 295x2 (Quad-fire)
RAM
G.skill Ripjaws 4 16GB (4x4GB) 2400
Power Supply
EVGA 1300G2
Cooling
Corsair H105
Case
Thermaltake View 71 (diy Snow Edition)
Operating System
Windows 10 Home
Keyboard
Razor Deathstalker Chroma
Mouse
Razor Deathadder Chroma Elite
▲ hide details ▲
wermad is offline  
post #6 of 21 (permalink) Old 08-17-2011, 05:10 PM
New to Overclock.net
 
grandpatzer's Avatar
 
Join Date: Apr 2010
Posts: 1,180
Rep: 12 (Unique: 12)
All my 3 displays have this problem, it increases when brightness/contrast is increased.

Currently building a watercooled setup, using EK DMZ industry grade 15.9mm/9.5mm Black tubing, 16/10 white compression fitting
grandpatzer is offline  
post #7 of 21 (permalink) Old 08-17-2011, 05:14 PM
New to Overclock.net
 
Nocturin's Avatar
 
Join Date: May 2011
Location: Somewhere OverThe Rainbow
Posts: 5,956
Rep: 153 (Unique: 126)
Awesome read- I learned something!

+rep

+rep

!

profit!

Currently on Hiatus
1nf3ction is a BOSS!
BF3 id: Nocturin3
Disclaimer: IMHO; If you take it otherwise, your doing it wrong.
#OccupyAMD

Warnig: lulz (Click to show)
Quote:
Originally Posted by axipher go_quote.gif

That's a good questions, my 3 female room mates use the bathroom upstairs, I just use the shower downstairs, we might have to use the trunk of my car instead, I know that's sterile and has rubber mats and walls in it haha.
Also, more updates biggrin.gif We need to keep this thread somewhat on topic haha.
Quote:
Originally Posted by srsdude go_quote.gif

Yo dawg I heard you like computers in computers so we put a computer in your computer so you can use your computer while...thumb.gif
go_quote.gif

Nocturin is offline  
post #8 of 21 (permalink) Old 08-17-2011, 05:24 PM - Thread Starter
Retired Staff
 
Phaedrus2129's Avatar
 
Join Date: Nov 2009
Location: Chino Hills, CA
Posts: 16,520
Rep: 1730 (Unique: 1138)
Quote:
Originally Posted by grandpatzer;14620086 
All my 3 displays have this problem, it increases when brightness/contrast is increased.

Same principle. smile.gif

Burning books is like burning bras; after the adrenaline rush of the symbolic moment wears off all you're left with is a pile of ashes and unsupported boobs.
Phaedrus2129 is offline  
post #9 of 21 (permalink) Old 08-17-2011, 05:26 PM
hardware nerd
 
num1son's Avatar
 
Join Date: Nov 2010
Location: MI
Posts: 2,621
Rep: 109 (Unique: 88)
This worked for me without even knowing it yesterday! I had a noise after I W/Ced my gpus. I ignored it and went on Ocing them, and it just went away. Nice!
num1son is offline  
post #10 of 21 (permalink) Old 08-17-2011, 05:26 PM
Meow!
 
djriful's Avatar
 
Join Date: Aug 2011
Location: Toronto, Canada
Posts: 8,321
Rep: 243 (Unique: 204)
You're a scientist to me.


~ Nothing to see here ~


djriful is offline  
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off