i am facing a problem which i do not know how to explain, Recently i changed my motherboard, previously i had a micro - ATX motherboard ASRock B75m R2.0 , i now have an Asus sabertooth z77 which is of course an ATX mobo , rest everything is the same . but since the change my gpu temps are higher 5C at stock Clocks , i am so confused all the 6 inflow and exhaust fans are working at 1000+ Rpm yet my temps are higher although this new mobo even has two tiny asisitant fans which maintain air flow in the mobos thermal armor yet my gpu temps are higher .. what is casuing this ? please help 
the first picture is of my old mobo and the second one is of my new one

the first picture is of my old mobo and the second one is of my new one

