Intel Quadro is to hot!

OK,
Ive installed 120*120 cm, 80*80 cm and PCI-slot fans. That Ive replaced the thermal paste to the one I like. As a result Ive this for idle

Sys Temp: +51.0°C (high = +82.0°C, hyst = +1.0°C) sensor = thermistor
CPU Temp: +44.0°C (high = +80.0°C, hyst = +75.0°C) sensor = diode
AUX Temp: +34.0°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
(That means that my CPU is now cooler than the MB ?! )

and this for full load

Sys Temp: +51.0°C (high = +82.0°C, hyst = +1.0°C) sensor = thermistor
CPU Temp: +67.0°C (high = +80.0°C, hyst = +75.0°C) sensor = diode
AUX Temp: +34.5°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor

I`ve thought of incorrect interpretation of Sys temp by sensors, but SpeedFan in Windows gave me the same result.

That means that MB temp is actually not changing.
I`am using ASUS P5-KPL-VM. May it be any problem?