Hi,
I have a Latitude E6430 laptop and the CPU Heatsink fan doesn't turn on. I have ran the diagnostics and it says its running and at 2800 RPM. I have removed the bottom plastic cover and made sure the fan was clean, and tested the fan with a battery and it works.
I have tried the latest BIOS A21, the oldest BIOS A03, and some in between.
With power saving mode on and max cpu setting set to 50% the idle temperature is 60 C. And with cpu settings at 100% it goes above 70 C just staring at the desktop.
I have reinstalled a few different versions of windows and decided to go back to windows 7. None of the other versions had an effect on the fan.
Any help would be appreciated.