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Old November 12, 2014, 07:48 PM
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Default Graphics Card Coil Whine; An Investigation, Comment Thread

There has been a lot of talk about the prevalence of graphics card coil whine and we decided to take a closer look by detailing our tests of 50 cards from NVIDIA and AMD.

Read more here: Graphics Card Coil Whine; An Investigation
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Old November 12, 2014, 08:08 PM
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I don't think I've ever really experienced it. When you get a coil whine on a system under heavy load, is it really more noticeable than the fans at full tilt?
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Old November 12, 2014, 08:12 PM
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It really depends on how susceptible you are to it. While I am able to hear the whine over fan noise, several of my friends can't.
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Old November 12, 2014, 08:17 PM
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I've never experienced it with a vid card, but my DFI P35 dark doubled as a rodent/cat repellent. :)
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Old November 12, 2014, 09:05 PM
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It definitely has a lot of factors to it. The worst cards I've had were 8800 ultras.
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Old November 12, 2014, 09:30 PM
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The first card that I know of that ever existed was the very first 8800GTX cards from the 2004 era. After that I've heard many cards that do it include a 8800 GT that I had.

From what I understand and have discovered myself being the reason is that the coil whine happens when something doesn't properly use vsync such as menus and such which was stated in the article.

So if you are sitting at a menu and vsync isn't enabled your frame rate jumps to 999 or more and causes an overload on the card.
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Old November 12, 2014, 09:30 PM
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Quote:
Originally Posted by JMCD View Post
It definitely has a lot of factors to it. The worst cards I've had were 8800 ultras.
You've never experienced an HD 7990 then. It bordered on painful. Luckily I don't have a dog or it would have tucked its tail and run off for good.
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Old November 12, 2014, 09:40 PM
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I briefly experienced coil whine with my MSI R9 280X cards (single and crossfire). I resolved the issue by changing PSUs. I replaced a PC Power and Cooling Silencer 750W with a Corsair TX850 V2.

I had previously used an MSI GTX 460 and an EVGA GTX 580 with the former PSU without issue.

I don't have a stethoscope, but I'm almost certain the coil whine was emitted from the GPUs as opposed to the PSU.
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Old November 12, 2014, 10:18 PM
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I wonder if it has something to do with the quality of the VRM cooling more than anything else.

Gigabyte judging by these charts with their Windforce seems to be the brand that does very well in terms of preventing coil whine. The high end MSI and Asus variants are pretty good about this too.

The 7990 and r9 290 series seem to do badly, probably because of their high power consumption.
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Old November 12, 2014, 10:28 PM
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I had an Asus GTX 460 that was whining when folding the 762x units. It was really annoying, especially that the model was really quiet in all the other tasks.
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