Noise Level Results
For the stock settings, we were limiting both the pumps and the fans speeds, and doing so leaves the 1250 near silent, with a 33 dB reading at this point. Inside of a chassis, you would never hear this, but give it the chance, and the Kuhler H2O 1250 will scream like a scared teenage girl.
With the fans and pumps now set for maximum velocity, there is a droning sound that is hard to shake and get out of your head. The 65 dB reading here seems like it would be loud for sure, but there is also a pulsation to that noise that could almost put you in a trance. To be honest, with all the runs we do at the overclocked level of testing, the end of the testing could not come soon enough. This is just too loud to be even remotely enjoyable to use at this level.