Stealth way to make fans quieter. \ VOGONS

Stealth way to make fans quieter.

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First post, by Sphere478

Posted on 2022-03-05, 23:48

Sphere478 Offline

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I recently bought a pair of celeron coolers and they work pretty good for my dual socket 7 build but I’ve been annoyed that they are so noisy.

I have a noctuna adapter for making the fans quieter.

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So I got out my volt meter and checked to see what was going on in there, turns out there is a 150 ohm resistor in line with the middle pin. So why not get a resistor and hide it inside the fan it’s self?

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I’m very pleased with the result. Much quieter.

The only thing I think I still need to do is get some sort of black epoxy or some kinda glue that’s black and runny to pour over the wires to immobilize them.one tug and I may have a short…

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Reply 1 of 4, by Sphere478

Posted on 2022-03-05, 23:49

Sphere478 Offline

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Pic 6

Sphere's PCB projects.
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Sphere’s socket 5/7 cpu collection.
-
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 2 of 4, by pixelatedscraps

Posted on 2022-03-05, 23:54

pixelatedscraps Offline

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Nice work!

I’m guilty of the lazy ol’ Noctua A4 / A6 / A8 and zip tie solution 😉

My ultimate dual 440LX / Voodoo2 SLI build

Reply 3 of 4, by shamino

Posted on 2022-03-08, 20:06

shamino Offline

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Just be mindful of the current draw and make sure the resistor you use can handle it. If not you can use multiples in parallel (which changes the resistance so use resistor formula if doing that).

Reply 4 of 4, by Cuttoon

Posted on 2022-03-08, 21:57

Cuttoon Offline

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Just for fun, I tested the next best Arctic Freezer Pro here.
That thing draws 0.08 Ampere.

By the sacred laws of Georg Simon, that would correspond with 150 Ohm, were it an ohmic load, which it is not.

But exact science apart, yes, a 150 Ohm resistor in line should cut that in half. Both of them then runinng a t whopping 0.48 Watts.
So, most resistors at hand should take that without complaint.

Funny that Noctua made a busines of that cheap makeshift solution. Applied that to several fans in the 90 yet it felt like a cheat even then. Bit of shrink tubing usually made it look neat enough.

I like jumpers.

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