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Good Fan Controller? - Page 2

post #11 of 14
Quote:
Originally Posted by Z Overlord View Post
So the one in the OP is not 30w per channel?
Nope... That Zalman controller is only rated for 7W per channel.

Quote:
Originally Posted by shadowman007 View Post
Hi guys I also had a question I see on some fan controllers it says 45W per channel and some 12W per channel. What does this mean? having more watts per channel whats the advantage?
I could understand if it was a cd player having more watts but in a fan controller I don't
In terms of electromagnetism, one watt is the rate at which work is done when one ampere (A) of current flows through an electrical potential difference of one volt (V). --> Source

Watts = Amps * Volts

As it relates to Fans...
Let's look at a popular fan here at the forums:
Scythe GT AP-31
If you click on the Specifications tab you'll find that these fans have a Rated Current of 1.14 Amps and a Rated Voltage of 12V DC.
So if we take our formula from above...

Watts = 1.14 * 12
Watts = 13.68

This means that those AP31s will draw 13.68 Watts when running at maximum speed (12V) and that a fan controller rated for 7W like the Zalman from the OP won't be able to handle them.
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post #12 of 14
Thread Starter 
Well I want a fan controller to lower the speeds, I don't care about temps they are fine I just want to quiet down my PC, that's what I've been using my current fan controller for but one of the connecters soddering sucks.
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post #13 of 14
Quote:
Originally Posted by Z Overlord View Post
Well I want a fan controller to lower the speeds, I don't care about temps they are fine I just want to quiet down my PC, that's what I've been using my current fan controller for but one of the connecters soddering sucks.
Understandable... So basically what you need to do is figure out what the Wattage of your fans is; then after that you just find a fan controller that is rated for a higher Wattage than the one the fans are rated for and go from there.

I understand that people like the 30W - 40W controllers, but for all intents and purposes a fan controller rated for 10W - 15W should be more than enough for a regular user that plans on hooking up one "normal" fan per channel...

Those high wattage controllers are for people wanting to daisy-chain multiple fans to the same channel, or for people wanting to use super powerful fans...

If you post the Brand/Model of the fans you want to slow down; we can tell you what fan controller will be enough for them.
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post #14 of 14
Thread Starter 
Noctua fans, just their 120mm, I believe they only have one model for that, not sure.
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