Chosen Solution

I have a 27" 2011 iMac with video card Radeon HD 6970M 1GB and it’s rebooting when connect the temperature sensor to MB. If I disconnect it works and stopped the reboot problem but the fan is working max RPM. I can set it with macs fan control but I interest a real solution. I tested with Heaven and it works fine. Any idea to fix the problem?

Have it checked for this recall program: https://support.apple.com/en-us/HT203787