The biggest problem you're likely to face isn't an RPM issue but a starting voltage issue. According to the review, the fan controller in the power supply kicks in at around 3.4V. By contrast, according to the Corsair page, your fan may kick in around 7V. You can test this with a basic fan controller or a bench top power supply.
Assuming a starting voltage of 7V, this means you're likely to experience the following:
- A narrow operating range with the Corsair fan
- A higher initial RPM for the Corsair fan since it's now starting when the power supply is much warmer
- Ticking sounds as the fan attempts to start up (although the sound may be masked by other system fans)
- Hysteresis in the fan behavior (constant starting and stopping instead of gradual changes in RPM)
I went through a similar process when changing the fan in the SF600 and while I ultimately found a solution, it's not ideal. My advice is to not bother unless you're willing to live with the above caveats or to find a fan with a low (<3.0V) starting voltage.
