It is well supported on business class Dell laptop modules such as Latitude, Inspiron, Vostro, Precision mobile workstations and so on. It is used for accessing SMM BIOS on Dell laptops. I have no BIOS control options available for the fan so I'm stuck.Say hello to i8k driver to control Dell laptop fan I know the fan works since it reports RPM, and is able to be controlled via Windows and BIOS Diag, but not in Linux apparently. Getting really frustrated with this, since it was working and all the sudden not anymore. Installed and uninstalled i8kutils and fancontrol, neither of which worked nor gave me any error output.HOWEVER while this utility is running, the fans spin briefly (like they do in an overheat) and then fall back to nothing. See doc/fan-divisors for more information. You may also need to increase the fan divisors. Make sure you have a 3-wire fan connected. There are no working fan sensors, all readings are 0. Installed psensor to check fan speeds and core temp values (Core idles around 70c, up to over 100c under load - fans only register on "max" value after the quick overheat spinup.Installed hwinfo, am able to setup fan curves and manually spin fan through the "sensors" menu - only when program is running.Ran diagnostics, fan spins during fan checks.When it reaches the critical "Overheat" point, the fans will spin up for less than a second to full power, then turn back off. The computer will run as normal and heat up quickly. When I put it back together, I found that the fan was no longer spinning. I opened up the case to check out the RAM situation for upgrading, but did not make any changes to the device in that time. I have a new-ish Dell Latitude 5404 Rugged which, up until about a week ago, worked perfectly fine.
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