Glad I did this because when removed there was a great deal of clogged dust particles remaining in the housings which required a good cleaning too. Whilst doing this it was obvious that the fans would benefit from removal and thorough cleaning. So I installed a Samsung 860EVO SSD in place of the original HD. I'd been planning to sell my mid 2010 27' iMac and purchase the new 2019 model, as the performance had significantly dropped off despite doing an OS clean install. Simply shorted out the HD connector with a home-made jumper wire as shown HERE.
Just do what many have successfully done, myself included.
Don't waste your money on that OWC (or similar) temp sensor!
