Solved High Speed Cpu Fan After Replacing Optical Drive With Ssd Imac Intel 24 Emc 2267
Chosen Solution I replaced my optical drive with an SSD. I followed the guide, and all seemed to go well. I moved the temperature sensor onto the new drive. However, a fan (pretty sure it’s the CPU fan) runs on high from startup. I’ve tried the various fan control software to slow it down (iStat Menu, smcFanControl). They make no difference. TechTool Pro passes all tests. When I test the HDD or ODD fan, I hear another fan rev up, while testing the CPU fan modifies the now normal jet engine fan....