Awesome Performance, but tone changes on
I bought these fans to replace the ones on my Havik 140. To see if they were worth swapping out i did a little testing.First and foremost, i love the look of these fans, i have a black and white themed system so they fit in nicely.I wanted to find some comparisons between example replacement fans and the bundled fans with the Havik, this is nowhere to be found on the internet it seems.These things push some serious air through a system and using two fans in push/pull on my havik at 1300 rpm they shaved an average of 6C off the max temps of each core, far more than what i was expecting. Note i am using an i3570k OC'd to 4.4ghz @ 1.272V the average temps reduced from 81.5C to 75.5C and delta temps (max temp minus case temp) of 53.9C to 49.2C.So in short, they outperform the stock NZXT's wavy blade fans by a good margin.Noise:, here is where they lost a star. I noticed that when mounted vertically as exhaust fans, they made considerably less noise, this is due to the lack of resistance here, however when put on the heatsink, the noise tone changes due to the additional air resistance which is noticeably louder.This doesn't bother me to be honest as a play with a noise cancelling headset anyway. but to a silence freak, they might be a source of annoyance.To sum up, they move a lot of air and really do seem to live up to their specs, I do intend to buy more of either these or the LED PWM ones, but they would probably serve better as intake fans to really get the air into your system.
