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Heatsink/ Heat Pipe / ThermoSiphon Cooling The cat will only make the mistake of putting its paw by your HSF once. :) Also the place to discuss the new high end heat pipe goodness.

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Unread 07-28-2002, 02:14 PM   #1
Acroam
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Default How to quiet a Delta 120mm Fan??

I was just wondering about how to mod a Delta 120mm fan so that its quiet? Its WAAYY too loud!!
Im not sure of how to do it, can you pros give me the right way of modding one? what i will need and how to install it? thanks alot!
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Unread 07-28-2002, 04:02 PM   #2
Acroam
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thanks to the procooling site, i read about cutting down the voltage, the delta is really quiet now!! Thanks ProCooling!!
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Unread 07-29-2002, 04:47 AM   #3
Brad
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2000 grit sand paper on the blades helps too
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Unread 08-16-2002, 09:16 AM   #4
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interesting idea brad. have you tried it before? i was thinking not only could you reduce turbulence on the top of the blades, but you could also remove the material in a way that better balances the rotor. precise balancing is very important. balancing not only reduces noise & vibration, but it also quiets the origin of turbulence (pressure perturbations at specific frequencies). i haven't taken apart my Deltas to see how well the factory balances them, but i'm sure improvements are possible. even if you couldn't remove enough plastic to balance it, maybe adding weight is possible (like balancing the wheels on a car).
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Unread 10-27-2002, 11:45 PM   #5
peregrine
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I'm wondering why you bought a delta when you want a quiet fan.
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Unread 10-28-2002, 01:52 AM   #6
Brad
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I've done it a couple of times - it really does help quite a bit.
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Unread 11-12-2002, 08:07 AM   #7
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you could also isolate the fan from transferring its vibrations to the case, by using rubber fan plugs or sticking the fan onto where u're mounting it with something like RTV silicon adhesive (done this on my AX-7 with panaflow works a charm)
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Unread 11-12-2002, 04:36 PM   #8
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I can vouch for Brad on this one too. I recently sanded down my Sunon 120mm fan with 600 then 1500 grit sandpaper and I personally believe that it dropped the noise level from 42db to about 38-39db (NOT scientifically proven).

Sanding does make a difference! Now I hear my HDDs more than my 120mm fan
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Unread 12-23-2002, 01:53 AM   #9
trifler
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Could someone show with some pictures what you actually mean by gritting the blades?
My english ain't that good so i don't really understand..
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Unread 12-24-2002, 11:55 PM   #10
Brad
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use sandpaper to smooth out the blades. Does anyone else speak swedish here?
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2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water
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Unread 12-26-2002, 04:14 AM   #11
Kevin
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hehe a quiet delta...
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