Darth Marsden said:
Like I say, I'm not an expert at these things - I was mostly just looking for a recommendation to buy. Having looked at it, I think I'm gonna go with this one [http://www.newegg.com/Product/Product.aspx?Item=N82E16835106114]. My main concern is installing it - I'd prefer not to remove all of the bits of my PC to do it, but if needs must, then so be it.
You can do much better than that.
There are three main considerations (apart from price of course) when selecting a fan, and they are CFM, RPM and dB. These three factors are intertwined.
- CFM is the amount of air the fan is capable of displacing at a given RPM.
- RPM is the revolutions per minute that the fan normally operates in.
- dB is the noise the fan will generate at the given RPM and CFM.
Taking this into account, the best fan you can get is one which displaces a large volume of air, or CFM, with the least decibels, or dB. RPM is useful because it gives you "leeway". If you desire more airflow, you can increase the fan's RPM - but you sacrifice dB. The opposite of course applies: if you want less fan noise, you can lower the RPM, but you sacrifice the CFM.
In any case, that ThermalTake DuoOrb is rated at:
Fan size: 80mm (x2)
CFM: 37.67
Noise level: 21dBA
Operating RPM: 2,000 (forget about going higher with 80mm fans, unless you don't mind your computer sounding like a personal jet taking off)
Price: $64.99
Instead, consider this:
Thermalright SI-120 ( http://www.newegg.com/Product/Product.aspx?Item=N82E16835109123 )
Price: $47.99
coupled with this:
Scythe SY1225SL12L 120mm ( http://www.newegg.com/Product/Product.aspx?Item=N82E16835185057 )
Price: $8.99
The fan's ratings are:
Fan size: 120mm
CFM: 40.17
Operating RPM: 800 (very low; you can easily double the RPM, have better cooling and still be under the Thermaltake's operating RPM and dB)
Noise level: 10.7dBA (keep in mind that decibel noise increases logarithmically)
The total is: $56.98
Remember what I said about decibels being logarithmic? I am not sure if you are aware of this, but don't think that a 10dB difference is minor. In reality the difference is massive.
Another bonus is the setup I recommend follows a more conventional heatsink / fan combination traditionally found in stock CPU coolers, so setup should be easier and space constraints less of an issue than the ThermalTake you have shortlisted.
Anyhow, my 2 cents...