“However, the higher you set the minimum fan speed, the longer it will take for the fan speed to increase.” Why would I want to use smcFanControl? “smcFanControl lets the fans stay in automatic mode and just sets the minimum fan speed,” reads the FAQ. You cannot set a minimum/maximum speed to a value below/above Apple’s defaults.įor those wondering, the minimum default fan speed is 1,000 rpm for the 15-inch MacBook Pro, 1,500rpm for its 13-inch counterpart, 2,000rpm for older MacBook Pros with Intel’s Core 2 Duo chip and 1,800rpm for the older Core 2 Duo MacBook models.Īccording to the FAQ, if you use smcFanControl to set a new minimum speed, your fan speed will still get a boost when the CPU load gets higher. The app ensures that whatever value you set is within acceptable tolerances. SmcFanControl manages your Mac’s fans responsibly to avoid damaging it. When you quit smcFanControl, the computer goes back to macOS’s default fan control. Click the icon to open the menu and display more information, switch between your default presets, bring up the settings interface and access other options. The app sits in the menu bar, with the icon reflecting the current CPU/GPU/HDD temperature and individual fan speeds. Use it to safely set the minimum speed of the left and right fans individually. I especially liked three customizable presets for when my computer is connected to AC power, running off its battery or charging, which allow smcFanControl to set different speeds for each fan automatically, as soon as the power source changes. With smcFanControl, you have total control of the computer’s fans, all the time. The said, I’ve always wanted some control over my Mac’s fan speed but I understand why Apple is reluctant to provide such an option as it could easily lead to CPU failures every time someone who doesn’t know what they’re doing reduces the fan speed below the minimum. Worse, I’ve even had cases when the fans in my MacBook Pro would intermittently start spinning like crazy, without any app running whatsoever, due to some old process stuck from prior updates. Your Mac may also suffer from overheating when running heavy apps and GPU-intensive games, or due to background processes such as Spotlight and Photos indexing. macOS will also lower the clock frequency to give the processor a chance to run slower and cool off. In order to protect the internal components, the built-in fans kick into overdrive to bring the overall temperature of the CPU/GPU/HDD down. I blog from the beaches during the summer so my notebook quickly becomes unbearably hot due to the heat from direct sunlight. Take note you are limited to the minimum value that Apple sets, so you can’t damage your hardware.A free macOS app called smcFanControl lets you individually control the fans built into every Mac desktop or notebook in order to make your computer run cooler. If you’re having a noise problem, you can lower this value, but make sure you keep an eye on the temperatures. This fan control tool has been used for years to set a minimum rpm value for the built-in fans. Also, it’s free, so it’s worth trying it out before buying a premium app. Keep in mind that it won’t work on the new M1 Macs, but it should be compatible with the Intel builds. Displays a status bar with current fan speed and HDD temperature.Īlthough smcFanControl is outdated because it has been discontinued, you can still use it on an older iMac, MacBook Air, or MacBook Pro.
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