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Old October 23, 2012, 12:17 PM
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Default Is that noise dangerous?

Hi guys,i never worried about that noise, i have had it for 1 year and my card works perfectly,and it's not very loud but i was wondering if it's normal of if the fans will die soon? the microphone is very close to the case so ,it's loud,but actually, not that loud, here the fans are 80% .

It happens when the fans are 70-80% electronical noise.. It's not a problem for me ,I use headset but well ,if it's dangerous for the card..(recorded with extremely High end mic so it's the exact noise.)

GIGABYTE WINDFORCE GTX 570.

Tests: the card or the fans are not vibrating(when i touch the plastic of the card) when the noise happens, everything seems to be stable in the case, happens more when changing the power of the fans,from 0% to 80% with afterburner,seems to be purely electronical.

What i want to know is : can it damage the fans? my PSU is good.

Started before i overclocked the card,a year ago.

The fans move normally but i listened to a lot of coil whining vids,sounds like that.And the noise seems to come from the electronics and the PCB itself.Even if it depends on the fan speed, seems to come from near the power connectors but inside the card

EDIT: there is also a slower cracking noise at 50% fans
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Last edited by bliz; October 23, 2012 at 01:56 PM.
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Old October 25, 2012, 03:27 PM
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If it is indeed coil whine, then it is harmless. It sucks, but it seems that it's a very common issue with higher end cards that draw a lot of power.

This may not be of any comfort to you, but that's actually quite mild in terms of how severe coil whine can be. From my experience, they vary from a mild buzz to a high-pitched squeal. Yours is the quieter buzz variety, and may or may not get better with time.

If you're feeling particularly adventurous, you can try the nail polish method to try and alter the vibration pitch of the coils.
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Old October 25, 2012, 03:58 PM
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add a filter (bi-polar cap) on fan motor
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Old October 25, 2012, 07:09 PM
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Thanks,but i prefer to leave my card alone^^ I would break it, actually it is not that disturbing while playing,as long as it does not explode :D
and i only have it in a few demanding games ,so..
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Old October 25, 2012, 09:56 PM
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Some people have had luck in putting a small dab of hot glue on the offending coils. I've not tried this myself so this is entirely anecdotal.
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Old October 26, 2012, 11:33 AM
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Quote:
Originally Posted by NyteOwl View Post
Some people have had luck in putting a small dab of hot glue on the offending coils. I've not tried this myself so this is entirely anecdotal.
Wow I never heard of that it is nice to know if I ever run into a problem again.
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Old October 26, 2012, 11:36 AM
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Nail polish also works.
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Old October 26, 2012, 11:57 AM
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Coil whine should become more noticeable when the card is under load like when you run a stress test. I'm not sure if you're just manually cranking up the fan speed or if you meant the ramp up when gaming. You can always stop the fan while under load for a few seconds if you're feeling particularly adventurous. If the whine is still there, then yes, it's bad caps but you can't do much about it short of nail polish or asking for rma
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Old October 26, 2012, 12:25 PM
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Hmm, Nail Polish trick, eh? What do you do? Just paint the tops of the caps with a little nail polish? My 295 has very bad coil whine.
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Old October 26, 2012, 01:06 PM
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No you put it on the coils, not the caps. The idea is that the coil winding oscillate ever so slightly and you are essentially "gluing" them to the cores. I persoanlly wouldn't recommend nail polish as it typically contains acetone which is a very efficient solvent and will do a "nice" job on plastics, circuit board ink printing, and even in some cases the enamel coating used on the coil windings.
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