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The noiseeeeeeeeeeeeeeeeee

post #1 of 34
Thread Starter 
Hello everyone,

I just bought the gentle typhooon that has 5400r ( 150.1 CFM) an and tbh when i bough it i didnt know what 50.5dbA sounded like...... now having 2 of them on my WC system.... I feel like in an airplane the whole day long!...

I bought also the fan controllers but run with some troubles there and i need to buy an adapter to make it work (hopefuly today or tomorrow)

But the thing is this... My fans are inside the case because i thought that by the case willl hold the noise. I didnt try putting them outside coz it was hard enought to attach them to the radiator once that im not doing that again! lol.....

My question is there are this pads that are suppoused to trap noise that u can put inside ur case ( i got a big case obsidian 800D). so i was wondering.... Is it worth it??? is there anything i can use that would make it less noisy (Other than reduce the speed?)

i was also looking at maybe buying other fans but then none offers 150 CFM for less than 50dBAm and i could go to 133CFM wit 45.9dBA... but i kinda have no idea what would be the difference in 4 less dBA noise reduction to my eairs..... and if is worth it by loosing 17 CFM in the process


WHat do you guys say? or do to cope with the noise?
post #2 of 34
Just get a fan controller ... you don't need them to run at full thrust all the time.
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Animal Mother
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post #3 of 34
Use your motherboard header for the time being and set up a power cycle in the Bios. Been doing this with my Deltas and Ultra Kaze forever. If we lived by an airport I guess it wouldnt be an issue, I could play it off as a plane going over.
post #4 of 34
What plugs on the fans and on the controller that makes you need an adapter?

Putting them wired in series might help for now. or feed each with 7v maybe but ultimately the controller is best because the sound deadening pads and the like will not solve the issue you have
post #5 of 34
Thread Starter 
I need an adapter because the fans 3 pins adapter came with only 1 cable ( the yellow one) but they also came with the other big 4 pins cable (male and female).

Because the normal 3 pin fan switch has only 1 cable on it, it cant power up the fans when i attach it to the fan controler.... so i gotta power them up usingthe 4 pin connector. but because of that then the fan controler doesnt work (as it cant regulate the energy anymore) so i though to get a the 4 pin to 3 pin adapter and make it work

I have the sentry LX fan controler btw
post #6 of 34
It sounds like the fan is powered by the 4 pin connector, the 3 pin connector that only has a yellow wire is just for plugging into your motherboard's header to monitor fan RPM.

Padding in your case will not help you with those fans, a controller is the only way of dialing that hot mess down. The reason why GT AP-15 fans are so popular is that you can run them at 100% and they're quiet. When you run fans designed to be run at 12v at lower speeds, their efficiency is dramatically reduced. It's like commuting in a pickup truck that can tow a boat, but when you're not towing a boat (99%+ of the time) you're wasting a ton of fuel compared to if you just got an efficient small commuter car and used it for commuting. I don't think there's a radiator that will benefit from 150 cfm compared to a more reasonable 100 or 70cfm, and your ears won't handle 150cfm, as just the noise of the wind will be intolerable, as you're seeing. I can't stand my fans at 2100rpm, so I have them dialed down over PWM to keep them quiet when they're not needed.

I have this controller, and it is by far the best invention for watercooling. Just set up your motherboard's software (or speedfan) to control the fans based on CPU temperature or another temperature you want to keep low, and it does the adjusting for you based on what profile you set it to, or you can manually control it if needed. You may run into another problem with a controller though, that the fan may not kick on at all if undervolted.. There is a point at which most fans won't run (my 38mm deep panaflos will not run under ~6-7v), and you may hit that before the fan is quiet... Unfortunately you may be looking for new fans soon entirely. I would check the forums and search and see if anyone else is doing anything else with those fans to quiet them down, or how they run them quieter.

If you've got spare 4-pin make and female molex connectors similar to the power ones for that fan, you can always mess with the adapter and re-wire it so that it feeds 12, 7 or 5 volts, reducing the speeds, but again, if it were me, I'd probably sell those and invest in some good fans that are quiet while fulfilling my needs.
post #7 of 34
Molex fans then, i had to mod mine, because the gut i bought them off did a bad job, so i just made them 3 pin fans lol.
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post #8 of 34
5400rpm... 150cfm... check. LOUD... check.
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post #9 of 34
Padding prolly wont help you out any. Padding is an absorptive material that while will lower the reverberation within a case it has a poor transmittance rating through the case. Padding I can imagine would lower the noise level by about 6db. And while the decibel scale is logarithmic, it just wouldn't be worth it. Just get a fan controller like everyone been saying. It will save you the headache.
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post #10 of 34
Quote:
Originally Posted by Nihilus View Post
Padding prolly wont help you out any. Padding is an absorptive material that while will lower the reverberation within a case it has a poor transmittance rating through the case. Padding I can imagine would lower the noise level by about 6db. And while the decibel scale is logarithmic, it just wouldn't be worth it. Just get a fan controller like everyone been saying. It will save you the headache.


I would be irritated by just the sound of 150cfm blowing through a radiator.....
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