A month ago i got a Nepton 240M for my 5820K.
It was about 10 days ago that i notices very strange noise and vibration from one of the fans. I did not take it out.
Yesterday the noise became very annoying and i said to myself it needs to be taken out of the system.
I found the problem on youtube between seccons 16 and 23:
Surprise....the second fan also got this problem (i think the vibrations from the first one affected the second one also).
I got both of the fans out of the system and mounted a Thermaltake fan 220mm on top of the radiator (the case allows it) - no more noise and vibrations this way, but with a Thermatake fan.
Now i want to replace the fans but my local supplier refuses that because it wants the whole set (including radiator and pump) to send it to the service. If i do that, it takes 7-14 days until i get the spare one and i will stay without a cooler system for the CPU = unusable computer!!
After o spend about 140$ on a cooling set i do not want to be left 7-14 days with an unusable computer.
Any advice on how to avoid that and replace only the fans?
I want to get back to the CM fans , not to stay on an improvised solution with a bigger fan.