The fans on my 2009 Mac Pro are running at full speed after upgrading the CPU tray to the tray from a 2012 12 core. Temperature monitor reports that the CPU temperatures are steady 32° and 34°c, and all other temperatures are within that range, and other than the howling noise my Mac Pro is running perfectly normally. Oct 17, 2016 smcFanControl controls the fans of every Intel Mac to make it run cooler. SmcFanControl lets the user set the minimum speed of the build-in fans. So you can increase your minimum fan speed to make your Intel Mac run cooler. However in order not to damage your machines smcFanControl doesn't let you set minimum speed to a value below Apple's. Control fans on Apple computers, also on Windows via Boot Camp. Monitoring of fan speed and temperature sensors. Solve fan noise and overheating problems, iMac HDD replacement.
SpeedFan monitor temperatures from several sources. By properly configuring SpeedFan, you canlet it change fan speeds based on system temperatures. When choosing parameters for the minimumand maximum fan speed, try to set them by hand (disable all the VARIATE FANs checkboxes) andlisten to the noise. When you hear no noise from the fan then you can set that value as theminimum fan speed for that fan. I suggest to use 100 as the maximum value, unless you hear alot of noise from it, in which case you might reduce the maximum speed to 95 or 90. You canset, say, 60 as the maximum value and, sometimes, I myself set it that way. Consider that whenthe WARNING temperature is reached, the program sets the fan speed to 100, whatever maximumspeed you selected. One last word should be said regarding the USE FAN x listbox. In my pc,more than one temperature changes when a fan runs faster. You can configure on which fan everytemperature should rely. On my system, TEMP1 and TEMP3 are both influenced by FAN1.
Some Apple products contain sensors that respond when they detect temperature changes inside your system or device, turning on fans to bring cooling airflow to critical components.
About fan noise
If your device's processor is working on intensive tasks—such as compressing HD video, playing a graphics-heavy game, or indexing the hard drive with Spotlight after you migrate data—the fans run faster to provide additional airflow. You might hear fan noise when this happens, especially if you're in a quiet environment. This rushing-air sound is a normal part of the cooling process.
Ambient temperature, the temperature outside the device, also plays a role in the fans' responsiveness. If the ambient temperature is high, the fans turn on sooner and run faster.
If you hear the fans in your Mac Pro running at full speed and you aren't performing any intensive tasks, check the enclosure. Make sure that your Mac Pro is locked and fully seated, or that the top cover or access door is closed and locked on rack-mounted models.
Make sure the vents on your Apple product aren't blocked
Some Apple products have vents that let fans bring in cool air and expel hot air. Make sure that the vents aren't blocked to allow your device to perform at its best.
- Apple TV 4K has a fan and a vent at the bottom.
- Airport Extreme and Airport Time Capsule have fans and vents at the bottom.
- iMac has vents along the bottom edge and on the back.
- iMac Pro has vents along the bottom edge and on the back.
- Mac mini has vents at the bottom to bring in cool air from beneath the device and vent hot air from the back.
- Mac Pro has three fans on the front of the computer and vents on the front and back.
- MacBook Pro has vents along the side and on the back. MacBook Air computers have vents along the back near the clutch.
The surface your device rests on can block its vents, affecting fan behavior. If you use your device on a soft surface like a couch, pillow, bed, or your lap, its fans might run more. Using your device on a hard, flat surface like a table or desk is best for temperature control.
Learn more
If the fans in your Mac run fast even when it isn't experiencing heavy usage and is properly ventilated, you might need to reset the System Management Controller (SMC) on your Mac. If you're experiencing this issue on an Apple TV 4K, Airport Extreme, or Airport Time Capsule, unplug the device, then plug it back in.
Speedfan Download For Mac
![Speedfan for mac app Speedfan for mac app](/uploads/1/1/8/2/118271733/325635475.png)
Speedfan For Mac Catalina
Learn more about the operating temperature of Apple notebook computers.