The next wrinkle is that this config file is not a standard plist that can be easily changed with a defaults write or managed with a configuration profile. The handy FSMonitor by Matthias Keiser allowed me to easily pinpoint that SSD Fan Control is storing it’s configuration at: /Library/StartupItems/SSDFanControl/config Since this manual configuration change survives a reboot the application is obviously writing the setting to disk somewhere, but I couldn’t find the preference in any of the usual locations. While it is easy enough to manually change the mode of operation from “Auto” to “ SMART” in the GUI, this won’t scale well or allow the easy re-imaging of these computers in the future. However by default the program runs in “Auto” mode for the hard drive which isn’t what we need. This allows the use of a replacement hard drive or SSD without the fans going crazy. SSD Fan Control can read the temperature reported by the hard drive and use it to control the fans, adjusting them as needed. (Read this excellent article by Alan Siu for details on this method of manifest management.) Installing the application on targeted computers is easy with Munki using a group manifest that can be set as an included manifest for the computers that need it. It hasn’t been updated since 2013 but still works great under macOS Sierra and has the bonus of being completely free. After evaluating several I settled on SSD Fan Control by Exirion. There are a variety of applications out there that allow the fan speed inside a Mac to be controlled. Thankfully software exists to work around this and I automated the installation and configuration with Munki, read on to see how. Installing a new hard drive or SSD results in the fans running at full blast. The only downside is that the OEM hard drives ship with specific Apple firmware that ties into the thermal management system. The computers still work fine otherwise and since it is pretty easy to replace them (it can easily be accomplished in under ten minutes without removing the display) that is what we’ve been doing. Usually commercial software or games are produced for sale or to serve a commercial purpose.This year we started seeing a problem with the hard drives failing inside our 2009, 20 iMacs here at the newspaper. Even though, most trial software products are only time-limited some also have feature limitations. After that trial period (usually 15 to 90 days) the user can decide whether to buy the software or not. Trial software allows the user to evaluate the software for a limited amount of time. Demos are usually not time-limited (like Trial software) but the functionality is limited. In some cases, all the functionality is disabled until the license is purchased. Demoĭemo programs have a limited functionality for free, but charge for an advanced set of features or for the removal of advertisements from the program's interfaces. In some cases, ads may be show to the users. Basically, a product is offered Free to Play (Freemium) and the user can decide if he wants to pay the money (Premium) for additional features, services, virtual or physical goods that expand the functionality of the game. This license is commonly used for video games and it allows users to download and play the game for free. There are many different open source licenses but they all must comply with the Open Source Definition - in brief: the software can be freely used, modified and shared. Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). Please consider making a donation to help support development.įreeware programs can be downloaded used free of charge and without any time limitations. Note: While the software is classified as free, it is actually donationware. Options to display fan speed and sensor temperature (displayed in the tray icon under Windows). Set custom RPM value or control fan speed in relation to a temperature sensor. Two tables layout: with list of fans and list of temperature sensors. Set custom RPM value (revolution per minute) or control fan speed in relation to a temperature sensor (e.g. Solve overheating problems like those found on a MacBook Pro. Solve noise problems such as those caused by iMac HDD replacement. Real-time monitoring of fan speed and temperature sensors including 3rd party HDD/SSD (using S.M.A.R.T.). Macs Fan Control for macOS is a software solution to noise problems such as those caused by iMac HDD replacement, or overheating problems like those found on a MacBook Pro. Macs Fan Control for Mac allows you to monitor and control almost any aspect of your computer's fans, with support for controlling fan speed, temperature sensors pane, menu-bar icon, and autostart with system option.
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