No heat locked in, just a couple strips on the outer edges and should run cooler since it won't be in the cage. I doubt if the drive is bad since I read that same drives are just noisier than others and it works great. It lets me know when it is working/seeking but I like the little green light on my OptiPlex better. Also the HDD is less than 2' from my head with no room for it under the desk. I will make an update post when I get time to make the change.
Dell XPS 8920 silver edition 7th gen i7 Intel CPU Samsung 850 evo SSD for boot Added front fan 16gb of memory AMD video/graphic card I buy a new Dell every 4 years for the last 25 years