Why are the fans on my iMac constantly running at high speed?

November 08, 2014 at 09:02PM: I changed my Seagate 1Tb HDD in my iMac late 2009 with a Samsung 840 Evo 120Gb SSD. I hot-wired the Temp Sensor, but now every time you turn it on the fans are running at high speed all the time. I already had an SMC-based SSD Fan Control and HDD Fan Control on my […]

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