Model A1312 / Mid 2011 / 2.7 & 3.1 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac12,2

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Fan speed after hard drive REPLACEMENT

Replaced HDD and now fans run all the time.

I remember a SW fix mentioned here and a HW fix.

Can someone point me to the HW sensor fix? Where may I find it?

Answered! View the answer I have this problem too

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2 Answers

Chosen Solution

This will fix it:

https://www.ebay.com/p/OWC-In-line-Digit...

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Hi. I'm having the same issue after replacing my HDD and adding an SDD. Would I need one of these cables for each drive? Thanks.

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The OWC cable replaces the sensor in the Apple HD drive.

If you are adding an SSD using this guide: Installing iMac Intel 27" EMC 2429 Dual Drive Kit (HDD or SSD) you won't need it for the SSD drive only the HD.

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