Fan runs constant, CPU Temperature sensor error, replacement?
Fan runs high on my late 2009 imac all the time (4000 rpm), and there isn't anything taxing the CPU.
Monity shows that my CPU Heatsink and CPU Diode are both at a temp of 0 degrees. The Northbridge Diode and Northbridge Proximity 1 are also at 0 degrees.
After running a hardware test I get the following error:
4SNS/1/C0000008:TC0H--124
Searches seem to indicate that means a CPU temperature sensor error. I'd be happy to replace it, but I can't seem to find one online. Does it go by a different name?
Any help is appreciated!
Is this a good question?