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NZXT Respire T20 CPU Cooler Review (Page 7)

By Chad Sebring from Jan 14, 2013 @ 13:52 CST
TweakTown Rating: 83%Manufacturer: NZXT

The Test System and Thermal Results


I would first like to thank HIS, GIGABYTE , InWin and AVADirect for supplying products for me to test with.

Testing for the CPU coolers is done with the use of RealTemp to ascertain temperatures, Intel Burn Test to deliver the load to the CPU and CPU-Z to verify the CPU speed and the voltage being used in Windows. All of the testing is done with an ambient temperature of 24.5-25°C and humidity is maintained to 35% sometimes less.

For the "stock" runs, it's more of a plug and play setup where the PWM of the motherboard is in control of the fans speeds for both the idle and load results. Speed Step is active and the processor idles at 1600 MHz and loads at 3500 MHz for the stock settings. I also set the memory to run at 1600 MHz for stock. As for the overclocked runs, I load the CPU at 4.5 GHz and idle results are obtained with 7.5V to the fans while the load run is set to deliver 12V to the fans. This allows me to gauge the lowest and highest fan ratings for my charts.


At idle the Respire T20 starts out really well. With the fan spinning at 1300 RPM the temperature rested at 26 degrees, and with slightly more voltages for the overclock, and the fans now going at 1800RPM the T20 holds on strong and only raised a degree with the extra voltage.


Once the testing was applied to the CPU, and in turn the respire T20, the results are less than expected. At stock levels we hit 57 degrees and only besting three other coolers at this level of heat production.

Once I applied the overclock things get really dicey. I sat and watched in astonishment as the CPU was allowed to get to 92 degrees before things leveled off. The Respire T20 is a good stock replacement, but I think a low TDP rating should be applied as not to lull customers into thinking this is the replacement for all the coolers that came before it in this price range. To me this just isn't a choice for overclockers.

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