![]() Luckily there is a way to disable BIOS fan control by writing to SMM registers. Warning: see the warning in top of smm.c. However, I've seen no user reports on this causing trouble. Also, all reports on trying this have indicated success in disabling the BIOS fan control. What we'll do is to download the source code of i8kutils, compile the program smm, and run it with an apropriate argument to disable BIOS fan control by writing to SMM registers.Äownload packages needed for building: $ sudo apt-get build-dep i8kutilsÄownload i8kutils source code, extract and enter directory (exact names depending on i8k version): $ apt-get source i8kutils I8kutils includes the source of a program smm but the i8kutils package does not include the compiled binary. If on a 64-bit system: $ gcc -g -O2 -Wall -I. Run smm with argument 30a3 to disable SMM fan control: $ sudo. ![]() Now, BIOS fan control should be disabled.
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