How To Override The Fast Fan Caused By An Incompatible Drive Repair Guide

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• How to override the fast fan caused by an Incompatible Drive
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Introduction

By removing the control board from your old hard drive, you can trick the iMac into thinking a new hard drive is compatible, keeping it from turning the fan on all the time.

What you need

Step 1

              How to override the fast fan caused by an Incompatible Drive               

• Pretty simple guide here . UNSCREW the logic board PCB from the ORIGINAL hard drive from the iMac 2009/2010/2011+ Hard dive for step 1:

Pretty simple guide here . UNSCREW the logic board PCB from the ORIGINAL hard drive from the iMac 2009/2010/2011+ Hard dive for step 1:

1024

Step 2

• Step 2: is simple. Simply put clear tape or anti static tape on the logic board PCB of the original hard from the iMac . Making sure it wont touch anything, as safety.
• MAKE SURE YOU PLUG IN only the temperature sensor cable FROM the iMac to the hard drive Logic board we have taped to the iMacs back housing, this is *crucial. This will make the iMac control the fan speed as normal. :)

Step 2: is simple. Simply put clear tape or anti static tape on the logic board PCB of the original hard from the iMac . Making sure it wont touch anything, as safety.

MAKE SURE YOU PLUG IN only the temperature sensor cable FROM the iMac to the hard drive Logic board we have taped to the iMacs back housing, this is *crucial. This will make the iMac control the fan speed as normal. :)

Step 3

• and thats it !
• install hard drive, there is just enough space. Enjoy

and thats it !

install hard drive, there is just enough space. Enjoy

To reassemble your device, follow these instructions in reverse order.

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                    codahyder                     

Member since: 06/28/2015

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Lost account - May 29, 2016

Reply

Hi! So sorry about that. I did not put in the exact corresponding models which will work with this exact guide (only models WITH temp sensor cable apply* here). Thanks so much for checking it out! I made this a while back, sort of to keep what I had done in archive and to possibly help others. For one software fix* I have used a program for Mac called “SSD Fan Control” and it does wonders. For a permanent fix I am not so sure/ there may be kits available through some 3RD party mac stores . Possibly even here ?! That help reroute the internal temp sensor models. Again apologies and best of luck to anyone trying to figure this out. haha :)

steve - Jul 18, 2018

Reply

I use HDD Fan Control. It uses the temperature read by S.M.A.R.T in the replacement drive. http://www.hddfancontrol.com/

Wulf Brandes - Feb 27, 2020

Reply

Can somebody explain how the apple control system works exactly? Why is the above mentioned fix really safe?