the thermistors (temp sensors) for your LCD temperature monitor, may not be installed correctly. i recommend using heat conducting compound, and heat transfer tape to attach the thermistors to the heatsinks.
however, LCD temp monitors are ususaly inaccurate any way. e.g. my CPU currently registers at 41oC in the bios, and 27oC on my LCD.
another thing you can try is ajust the "alarm temperature" to a higher temperature.
i recomend "GateWatch Aerocool" for temperature, sound and fan speed control. ive got one and it kicks ass!
take a look: http://www.aerocool.com.tw/aerocool-files-v3/peripheral/gatewatch/gatewatch.htm