undervolting works well. its also important for either chassis fans to maintain a flow of new air rather than allowing ambient temperature to rise inside. pastes are good but again needs to be accompanied with sufficient cooling. liquid coolers are cheaper these days, but for a p4 would probably be overkill. i find AMD cpus harder to cool, but bios/emi on modern chips have the "Cool 'n' Quiet" feature which usually just throttles the CPU to prevent heating + fans sponning harder.
ian
Sean Gibbins <sean@???> wrote:
>On 01/05/12 22:43, Tim Brocklehurst wrote:
>> That one looks interesting. There are some other (more monolithic) blocks with
>> larger fans.
>>
>> The reason for looking to large diameter fans is to move the same amount of
>> air with much reduced noise. There are some very detailed explanations of why
>> this happens on the web, if you are particulary interested in this aspect
>> (essentially, you operate a larger blade at lower lift, thereby reducing the
>> vortex strength).
>
>I used something similar a few years back and whilst it will in all
>likelihood sound far less obtrusive in terms of noise than your current
>setup, you will still hear it.
>
>Further to the technical explanation above, these are desirable for the
>same reason most case manufacturers shy away from tiny fans these days:
>they are far less 'whiny' and some are supplied with a means of stepping
>the speed up or down according to your needs. I never used mine above
>low setting, even when gaming.
>
>Speaking of small whiny fans, make sure your graphics card is not
>contributing to the noise, as these often contribute to the racket and
>there are plenty of fanless alternatives out there if you don't intend
>to do anything fancy graphics-wise, save perhaps power a couple of big
>screens.
>
>For something really quiet look at the Shuttle X35, as with an SSD in
>there it is silent. A mate has one an rants about it as it makes his
>water-cooled gaming beast sound noisey by comparison. The onboard
>graphics solution powers his two monster displays to their proper
>resolution effortlessly by the way.
>
>Sean
>
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