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Old 09-07-2007, 08:18 AM
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Default Re: Case fan

"Rookie" wrote in message
>I substituted the rear case fan with a zalman 120mm one. It runs at 1800rpm
> and isn't really annoying. The stock fans were 1400rpm rated (about
> 1350rpm
> actual speed).
> Encouraged by the nice temperature decrease, I then bought another one for
> the front position. This one ran at 1700rpm and was incredibly noisy. So I
> returned it and decided to buy a zaward dimple, which claimed to be
> 24db/1500rpm rated. It also looked nicely packaged and so on.
> This one is indeed much more quiter, and the led lights are nice as well,
> however it runs at 1320rpm, while the official specs are 1500+-10%, which
> means it should be at least 1350rpm. This fact is perhaps as annoying as a
> noisy fan.
> Now I am wondering, is it worth returning it? Chances are that the next
> one
> will be the same, and even a different brand won't be much better.

But how do you know the speed? Probably there's also an error of +/-10% on
the measurement...
Anyways, most 12 cm fans run at +/-1200 rpm and at that speed they do the

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