Information regarding case fan (Haf 922)
1) Front 200mm Inflow
2) Up 200mm outflow
3) Rear 120mm outflow
4) No fans on side panel inflow (Reason: Dust)
ankit clean ur hsf your temp will drop 5-7 degree, earlier my temp is 30 on idel and 36 on load , but after cleaning my hsf nd my whole cabby current temp is 23-24 on idel nd 30 on load , thats without a ac , but afaik u have a ac in your roon so, just change ur hsf fan only if needed.