OWC Thermal Sensor for iMac Late 2009 - Mid 2010

This is a thermal sensor for iMac Late 2009 - Mid 2010 boththe 21.5 inch and the 27 inch models. This cable is unique to the other OWC thermal cables, because this iMac series has an extra cable to plug into the main board.

Thisunique cable is a plug and play solution for the fan noise that happens when you remove the original Apple thermal sensor. Part of upgrading or replacing the hard drive in this family of iMacs is the thermal sensor is disconnected. The immediate response from the iMac is to turn the fan on full speed. Basically it thinks the sensor is broken, which is, and so to provent the hard drive overheating, it turns the fan on maximum. Until you have experienced ths, you have no idea how annoying ... and loud it is!!

There are two solutions

1. OWC Thermal Sensor cable (this product)
This cable goes between the drive SATA connection and the main board SATA connection. There is a snesor pad you stick onto the drive that monitors the temparature.
This is a cable only. Does not include an SSD or any parts you require to replace your iMac drive. You can read our guide oninstalling an SSD in your iMac here

The cable has been designed for the:
Late 2009 iMac 21.5 inch (iMac10,1) and the 27 inch (imac11,1)
Mid 2010 iMac 21.5 inch (imac11,2) and the 27 inch (imac11,3)

And the alternative option?

2. SSD Fan Control software
I dont want to do us out of a sale, but there is a free solution, and it is one we have used for ten years, in hundredsof upgrades, without any issues. It is a free app called SSD Fan Control. It does not live in the app store (for obvious reasons), it is a naughty third party app Apple does not want you to know about. Click on the link above, download and install.
Reasons NOT to use SSD Fan Control
The main reason is it by passes Apple's SMC thermal sensor system.
OWC also mentions that their cable solutionpasses the AHT (Apple Hardware Test). We have never had an issue with a new SSD and the AHT.
Reasons to use SSD Fan Control
This software hasthree settings: Manual, Auto and SMART.
SMART stands for Self-Monitoring Analysis and Reporting Technology. All the SSDs we sell, particularly the Crucial SSD have inbuilt SMART. This means they report on their health and operating conditions. SSD Fan Control uses this technology. As long as your SSD is reporting the correct temperature via SMART, it will set the fan correctly. Even better, you can