For low fan speeds, the minimum fan speed should be kept at 1000 RPM, while the maximum fan speed should be 2000 RPM. This will result in throttling and system crashes and may damage the CPU. What If CPU Fan Speed Is Decreased Too Much?ĭecreasing the fan speed to an extremely low RPM rate will cause serious overheating since there would not be enough air to dissipate the heat generated by the CPU. The recommended safe minimum fan speed is 3000 RPM, while the maximum safe fan speed is 4000 RPM. Increasing the CPU fan speed beyond safe limits will result in loud noises, overheating and, eventually, damage to the CPU. What If CPU Fan Speed Is Increased Too Much? For instance, a gaming laptop should be kept at 100% RPM at 70☌ and 50% RPM between 50☌ and 55☌. Furthermore, this may be different from what purpose the computer serves. New: smcFanControl now requires macOS 10.7 or higher. For instance, a large fan running between 1000 RPM and 2000 RPM may maintain the same system temperature as a small fan running between 3000 RPM and 4000 RPM. smcFanControl 2.6 adds the following features/bugfixes: New: Added french localization. However, this may vary for each fan size. This is what should be the ideal CPU fan speed. Now both 'Macs Fan Control' and also 'smcFanControl' cant control the fans anymore and the. This was a near-perfect solution until I upgrade my system to macOS Sierra. Mac Fan Control can control the fan controllers by allowing users to set fan speeds of their choice.Ī good fan speed should be between the ranges of 3000 RPM and 4000 RPM. To solve this issue, I installed a software called 'Macs Fan Control' that can read out the temperature from the SMART status of the drive and control the fan speed itself. Fan controllers are usually coupled with thermal sensors that adjust the fan speed when a temperature change is sensed. iFanAutoControl is an application to automatic control the fans of the computer and regulate the temperature of MacBook and MacBookPro Apple Computers based on Intel processors and Windows OS. Mac Fan Control is owned by CrystalIDEA and works by monitoring and controlling the speed of fan controllers. The Pro version costs $14.95 for a macOS license and $24.95 for both macOS and Windows. Mac Fan Control has a free version and a “Pro” version available. Using Mac Fan Control is safe when used properly. Mac Fan Control helps users overcome MacBook Pro overheating problems and noise issues caused by replacing Mac hard drives, which are a few strong sides to using this software. There are more than 25 alternatives to smcFanControl for Windows, Mac. On the other hand, in custom mode, the software controls the fans either by setting fan speeds or using sensor-based control. using msi dragon center because there is no linux version of this available. When set to auto mode, the program switches to monitoring while system fans work in the default mode. If you find it then kill the rogue process as explained before.Mac Fan Control’s unique feature is called “fan preset,” which supports two modes: auto and custom. $ ps -ef | grep -i fanĥ01 45716 254 0 2:44pm ? 0:00.38 /Users/dave/Downloads/firefox/smcfancontrol_2_4/smcFanControl.app/Contents/MacOS/smcFanControl If you have this problem you can try to find and kill the process "smcFanControl" instead. Note that for smcFanControl you got "ERROR TC0F" instead of "ERROR TH0P". I also try to run the current version of another fan controll utility called smcFanControl (version is 2.4) and it seem to not work in Maverics (no window) but it produce near the same message in Console: 15/11/13 14:19:35,000 kernel: SMC::smcReadKeyAction ERROR TC0F kSMCBadArgumentError(0x89) fKeyHashTable=0x0xffffff802af9b000 Procedure to check & eliminate smcFanControl WARNING: if you replicate this procedure replace PidNumber with the PID you get from ps -ef To eliminate it : $ cd /Library/StartupItems/Īnd then kill the daemon: $ sudo kill PidNumber This tell you that you really have FanControlDaemon running as pid 145 as PidNumber Open terminal and search for FanControl: $ ps -ef | grep -i fanĠ 145 1 0 Gio12am ? 3:58.07 /Library/StartupItems/FanControlDaemon/FanControlDaemon run Procedure to check & eliminate FanControl NOTE: this problem is similar but not equal to this one Kernel SMC::smcReadKeyAction error The other one is for another version of OSX. You can verify if you have them installed and eliminate if needed. To my knowledge there are two possible candidates (FanControl & smcFanControl but there may be more that have the same problem). The culprit can be a fan controll program you may have previously installed.
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