hi guys..planning to get a cooler master n400 and get 2-3 fans with it (if possible 4)..looking for no LED light fans for around RM15-20 (rm25/fan if really necessary, but between 15-20 would be best)..preferably 12cm ones and will be used on the top and side..something not too noisy, the quieter the better (silent best!) but keeping the pc cool is most important..was earlier recommended to get the CM sickle flow but wanna know if there's any other suggestions..thanks!