Yate Loon D12SL-12 120mm Case Fan Review
* Static Pressure and air flow
* Cooling ability
The Yate Loon D12SL-12 will be compared against Noctua's latest 120mm case fan offering - the NF-P12.
Static Pressure and Air Flow
In order to test the static pressure of the Yate Loon D12SL-12 and Noctua NF-P12 fans I constructed an air-tight test chamber which would allow me to physically assess how much additional static pressure the fan provided. The total approximate volume of the test chamber was 221.18 cubic inches. A digital Manometer was used to record the positive static pressure emitted by the fans. A Pito Tube from the digital Manometer was inserted into the test chamber out of the wind stream created by the fan, in order to prevent air velocity from corrupting the Manometer readings. Prior to testing the Digital Manometer was calibrated according to manufacturers specifications, in order to accurately read the resultant static pressure according to current atmospheric pressure.
#Note: The digital Manometer that I have used for todays testing is accurate to +/- 2%. However, the digital readout only records to 1 decimal place which makes the results relative in the grand scheme of things, but fails to provide an exact amount of static pressure i.e to two or more decimal places. Currently this is all my review budget allows for at the moment, but I will be upgrading my Manometer in the near future to a better model. So please bear in mind that when you see the static pressure graphs on the next page, that when a fan shows '0' static pressure it is actually between 0.0 cmH20 and 0.099 cmH20.
The Yate Loon and Noctua fans were tested for free air flow capacity using a calibratable digital Anemometer, upon which they were allowed to run at 5v, 7v and 12v respectively. I have chosen to test the fans at these three voltages due to the increasing number of people undervolting fans in the name of silence. Power for the testing phase was provided by a variable power supply, and the voltages checked using a digital test meter. The Yate Loon and Noctua fans were also tested for air flow when installed on the airtight test chamber by using the calibratable digital Anemometer to record the air flow after it had passed through the cooling fins of the radiator.
In order to assess the actual cooling performance of the Yate Loon and Noctua fans I have set up a simple water-cooling loop comprising of the following items:
* Alphacool X2 Bold CPU Water Block
* Laing DDC Pro pump with OCLabs Top and 1/2" EK High-Tail barbs
* 1/2" XSPC clear tubing
* Intel E6600 CPU
* Variable Power Supply
* Digital volt meter
* Aerocool Gatewatch rheobus with digital display
* Toyota Camry heater core with custom made air tight tin shroud
Let's go testing....