Infuriating rattle since installing H100i GT

[heartburnron]

Since installing the Corsair H100i GT last week there is an annoying rattle or rapid ticking noise coming from what I think is one of the fans. When I open the top of the case and apply a bit of downward pressure to the radiator with my hand it stops. I manually stopped both fans and it seems to be from the fan nearest to the end of the radiator with the two cables/tubing. This fan is the standard 140 corsair fan that came with it. The other fan is an LED I fitted in place of the standard. Is there a known problem with the standard fans?

I read somewhere about the pumps on the H100i producing a ticking noicse but the noise is definitely coming from the area where the corsair fan is fitted so unless the pump is inside the radiator it can't be that? I'm assuming the pump is in the CPU blockhead, is that right? I haven't lifted the computer down to tighten the screws again as I've hurt my back but I know I screwed them down pretty tight anyway. Thoughts anyone?

 

[Disco_P]

You might have overtightened the screws warping the frame and causing the fan to hit something as it spins.

Or the fan was faulty from the start.

Replace it with the spare fan and see if the problem goes. If the noise is super annoying and you can't replace at the moment then just unplug it.

 

[heartburnron]

You might have overtightened the screws warping the frame and causing the fan to hit something as it spins.

Or the fan was faulty from the start.

Replace it with the spare fan and see if the problem goes. If the noise is super annoying and you can't replace at the moment then just unplug it.

Thanks for the advice. I did think about trying the other fan but wanted to rule everything else out first - just because it will be awkward to replace now that it's tethered to the CPU.

 

[heartburnron]

UPDATE: Replaced the fan today with the other stock one and the rattle is gone! Happy days!