With 120mm fans getting all the love so far, I figured it was time to change it around and test out some 140mm fans as well. After all, if you believe manufacturers they all seem to have 140mm fans that can beat most 120mm fans at their game. In order to make this happen, Swiftech were kind enough to not just provide their Helix140 (in PWM flavor) but also an MCR140QP radiator to help test the fans as well. Major props then to Gabe and Bryan for helping out, and also acknowledging like always that the tests will continue to remain independent.

Let’s begin by taking a look at the specs of the fan courtesy the product page:

We see that this is a standard 25mm thick fan, and not one of the weird 140mm fans with 120mm sized holes. So these are good to go for 140mm sized radiators out of the box. The fan also comes in a 3-pin variant but it is a toned down version in terms of specs (max RPM, airflow, static pressure and noise alike). Aside from these standard specs, we see a Z-axis bearing employed here. This is based off a standard sleeve bearing but improves upon lifetime and noise (other “Long life sleeve bearings” are similar, if not identical) and that’s also why we see a higher reported MTBF of 60, 000 hours compared to the usual 25-50, 000 hours reported for fans with sleeve bearings. The warranty on the fan is not explicitly mentioned here, but their general warranty page reveals a 12 month warranty would be applicable here. I would have liked to see this be higher (2-3 years minimum, running for 3 years straight is still less than half of that MTBF here). With this covered, let’s take a look at the fan on the next page.

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