Hardware specs The following hardware behavior was discovered experimentally by Thinker and neither provided by nor confirmed by IBM/Lenovo. Packages are available for debian based linux systems. A GTK GUI program (packaged for Ubuntu 7.10 and 8.04) may also help. Вам, возможно, не понадобиться каждый инструмент для каждой процедуры.
Manual mode In manual mode, the fan level is forced to the given value and the EC will auto-regulate the fan to maintain at a (roughly) constant RPM, which is model-dependent. Although I don’t use ThinkPad anymore (so I can’t test the program), I still try to respond to all emails I get. Most newer ThinkPads take quite a while (in excess of one minute) to fully enter disengaged mode. For Linux NOTE! Fan control operations are disabled by default for safety reasons. To enable fan control, the module parameter fan_control=1 must be given to thinkpad-acpi. Later T models such as the T43 have this problem, while the A31 does not. Manual speed levels 8-63 yield the same behavior as level 7, and the the ACPI DSDT uses level 7 for the emergency mode it enters upon critical CPU/GPU temperature, so apparently 7 is the real maximum level.
You must also enable manual control for your fans. Identification and Background ¶ Released 3 June 2007, The ThinkPad 42 is part of IBM’s T40 series. It has a 14.1 inch display and weighs 4.9 lbs. The pulse occurs when the the embedded controller computes the fan speed and adjusts the fan voltage adaptively every few seconds (~4.8sec for the ThinkPad T43); the aforementioned mode switching doesn’t give it a chance to do so. Automated program — Simple ThinkPad Fan Control GitHub Page This is program for controlling fans speed on IBM/Lenovo ThinkPads. It is written for Linux only. This error can be intermittent and can prevent booting (Error ‘Fan error’) Automatic mode In automatic mode, the embedded controller sets the fan speed automatically according to system temperatures and some unknown algorithm.