Your mobo has the Winbond W83697F sensor chip.
It also has 4 fan headers with sensor connections;
Fan Power Connectors: CFAN1/SFAN1/PWFAN1/PWFAN2
The CFAN1 (processor fan), SFAN1 (system fan), PWFAN1 (Power
Supply fan) and PWFAN2 (Power Supply fan) support system cooling fan
with +12V. It supports three-pin head connector. When connecting the wire to
the connectors, always take note that the red wire is the positive and should be
connected to the +12V, the black wire is Ground and should be connected to
GND. This mainboard has a System Hardware Monitor chipset on-board, so
that you must use a specially designed fan with speed sensor to take advantage
of the CPU fan control.
So depending on how many and type of fans you have fitted you can set up Speedfan to monitor the temps and control the speeds of all four.
Obviously you need to keep your cpu fan connected to the mobo header to read cpu temp. you can then connect any of your remaining case or psu fans to the three remaining headers. The sysfan header will read the temp of the surface of the mobo and is usually used to control the rear case exhaust fan, although some people use it for the Northbridge fan if fitted. To use the sensor for fan control you need to check your fans have 3 wires (usu. black -Gnd, Red - +12V, Yellow - sensor/control). If they only have black and red there is no benefit in connecting them to the mobo, you may as well run them at constant speed directly off the psu (or a rheostat fan controller).
HTH