HDD Fan Control works to fix this issue by reading the drives internal temperature using the S.M.A.R.T protocol and set the fans actual speed to a value good to protect the drive. smcFanControl lets you monitor the current temperature (in Celsius or Fahrenheit), assign different minimum speeds for each fan using sliders, and even apply different settings when your power. Instead of HDDFan Control, get the free SSDFan Control A graph on the right of the interface shows you the speed to temperature ratio. Thanks to sliders, you can set the lower and upper thresholds and base speed. It runs at startup and continually to always control the fan correctly, prevent the loud fan noise and protect the drive from overheating Fan Control lets you adjust your fans speed and thresholds to adapt it best to your Macs current temperature. This free software is a product of SharemarketCollege. The most popular version among the software users is 2.5. HDD Fan Control works to fix this issue by reading the drives internal temperature using the S.M.A.R.T protocol and set the fans actual speed to a value good to protect the drive. The 2.52.14.0 version of SMC Trader is available as a free download on our website. What’s new in version 2.6 Updated on Version 2. However in order not to damage your machines smcFanControl doesn't let you set minimum speed to a value below Apple's defaults. So you can increase your minimum fan speed to make your Intel Mac run cooler. These programs will not work for this particular issue as they often only control the base speed, and if they do control the fans actual speed they rely on the temperature reported by the sensor which is now incorrect. smcFanControl lets the user set the minimum speed of the build-in fans. Properly Remove smcFanControl 2.5.2 on macOS - Correct Uninstall Instruction. Any ideas Continue Reading JavaScript is disabled. Home > Utilities & Operating Systems > smcFanControl 2.5.2. When I increase my fan speed, Ill hear my fan start speeding up (Ill go up maybe 100 rpm) and then it speeds back down to whatever it was running at without the software. Shorting the temperature sensor cable (Not a possibility on 2011 iMacs) this tricks the iMac into thinking the drives temperature is very low, hence slow fan speed.īoth these fixes are less then perfect and leave the drive in a dangerous situation with no protection from overheating.Īnother option people try is other Fan Control software. Ive come across SMC Fan Control, but it doesnt really work.Using smcFanControl and the terminal to set a MAX speed for the fan and writing scripts to start this after every sleep/restart.Resetting the SMC (System Management Controller) will have a temporary effect, but again the fan will speed up.įixes people have used in the past included: If you replace your drive, your iMac will initially seem fine, but soon the fan will begin to speed up to full speed. This is due to Apple replacing the external Hard Drive temperature sensor with a proprietary firmware and using the drives internal sensor. Replacement drives do not contain the firmware to deliver temperature data on the temperature sensor cable. When the iMac does not receive a good signal from the hard drive it puts the fan at full speed to protect the drive. Since the late 2009 iMacs came out, replacing the hard drive has caused the internal Hard Drive Fan to start running at around 6000RPM. Hi, likely the new Drive doesn't have the Termal sensor.
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