the GPU is only at 28 degrees thats probably why second fan is not working. I will buy a CM 212 and see how it does. I had cleaned the fans on the heatsink when I took it off to repaste.
you have to clean heatsink itself not only fan. all dust that is store over it pervents heat exchange with air that passes throught it. your fan is running at 5k rpm and your cpu is sitll at 60deg. this is cause air that passes throught heatsink cant take out heat from it.
situation is similart with vga and other components like psu and hdd. you want em dust free or they overheat and start to malfunction.
edit:
take whole pc apart (remove mb from case too), remove fans take it to garage and blow out all dust from it with compressor. hold rotors of fans and blow the dust from them too. block fan of the psu with wooden stick or screwdriver (be careful if you use screwdriver!) and clean dust from it too. you can hold fans of vga card with fingers while blowing out dust from heatsink. make sure you are directing air only to the fins of the cooler. dont blow air against pcb.
take some old but clean cloth (cotton is prefered. dont use wool or sintetic cloths!!!) put some isopropylen alcohol on it and clean remining dust from case and vga fans and cpu heatsink.
put everything together. when you are assembling psu turn it so that the fan is to the bottom of the case. direct cables through the holes in the tray so they go behind it. bring them back to the top of the tray via vertical rectangular holes in the case like
this.
when you are done your cpu shouldnt go above 26C degrea ideal and 46-48C while gaming if your room temp is 12C. if you get evo you will be able to turn on heater in your room and still have silent pc while keeping above ideal/load temps.
next time you see pc is dusty dont wait till it start to overheat to clean it agian. if you do it timely you wont need to disassemble whole thing to clean it. just light blowing with air will be enough but dont forget to block fans from spinning while blowing over them.