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hi i have upgraded the hard drive to a SSD sata drive 500gb, I have a imac late 2013 2.7ghz running the fan keeps coming on and is really noisy, I have downloaded SSD Fan control but need to know which settings to use, Thank You in advance
iMac 21.5″, OS X 10.10
Important to diagnosis: Without a fan controller, does the fan speed ramp up slowly after a cold start, or does the fan go full speed as soon as you start from cold?
If the latter, that suggests that a temp sensor somewhere inside the compeer was damaged during the drive swap. If that the case, a new logic board may be required and the the servce provider who did the work make it right.
Also, if a damaged sensor, a fan control app may not overcome that. Apple Diagnostics will pick up a failed temp sensor.
Use Apple Diagnostics to test your Mac - Apple Support
If that throws a code, there is a link at the end of that article to list of codes and their meaings.
Default fan speed on my 2017 iMac is 1200 rpm.
Important to diagnosis: Without a fan controller, does the fan speed ramp up slowly after a cold start, or does the fan go full speed as soon as you start from cold?
If the latter, that suggests that a temp sensor somewhere inside the compeer was damaged during the drive swap. If that the case, a new logic board may be required and the the servce provider who did the work make it right.
Also, if a damaged sensor, a fan control app may not overcome that. Apple Diagnostics will pick up a failed temp sensor.
Use Apple Diagnostics to test your Mac - Apple Support
If that throws a code, there is a link at the end of that article to list of codes and their meaings.
Default fan speed on my 2017 iMac is 1200 rpm.
Are you still running 10.10, Yosemite? Try updating to 10.12 (SIerra) or later. 10.14, Majove, is the last version of MacOS to support 32-bit apps and is an overall good choice.
This will:
(a) provide APFS support, Apple's new files system optimized for SSDs.
(b) might contain a firmware update that fixes the fan speed.
... I have downloaded SSD Fan control but need to know which settings to use,
None. Uninstall it.
There is only one reason to use clever things designed to circumvent a Mac's cooling system: to hide a problem that must be fixed. Fix the problem. Run Apple Diagnostics as Allan Jones recommended.
If your iMac's exhaust fan is audibly noisy you don't need an app to tell you that.
Which ones have you tried and what were the results?
Try them all and use the one that seems to work best for you.
SSD Fan control settings
