iMac 27 inch after updating to capitan OSX causes noisy fan.I made SMC , it made some temporary changes. the problem persist. I have 16gb RAM

dear all,

I am a big fan of MAC,

am a bit disappointed with the fan noice.

I mac 27 inch

16gm RAM

Capitan OSX 10.11.3

have tried the SMC, it worked before, now not any more…

on sleep he do not make any noise,

irrespective of big applications, its the same noice, Otherwise I love my machine.

Please help me….