Compaq 1700US Presario Laptop computer. The computer works OK but seems to get very hot. I ordered a new CPU fan and installed it with new silver thermal paste and updated the system BIOS. Now when It boots I get an error that says:
"Warning: Thermal Sensor diagnostic has failed. Please check thermal sensor in system. Press any key to continue."
There does not seem to be any air coming from the fan port, so apparently whatever tells the fan to go on isn't doing its job. My question: Where is the thermal sensor and how difficult/easy is it to replace?