I've replaced the Cooler Master CM12V cooler with the Scythe Big Shuriken 2 but CPU and GPU temps seems to be the same, this is my BIOS CPU and system fan settings,
Temps are monitored using Open Hardware Monitor,
Cooler Master CM12V
CPU Max - 30°C
GPU Max - 70°C (Fanless)
Fan RPM Max - 2300RPM
Scythe Big Shuriken 2
CPU Max - 30°C
GPU Max - 70°C (Fanless)
Fan RPM Max - 1500RPM

Temps are monitored using Open Hardware Monitor,
Cooler Master CM12V
CPU Max - 30°C
GPU Max - 70°C (Fanless)
Fan RPM Max - 2300RPM
Scythe Big Shuriken 2
CPU Max - 30°C
GPU Max - 70°C (Fanless)
Fan RPM Max - 1500RPM