I use a software solution, namely TG Pro that allows the User to control the fan speed. The app also monitors numerous temperatures.
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I changed out the stock Barracuda 1GB drive after failure using a new 4TB Seagate drive with a 256MB cache. The fan was maxed out once I replaced the drive. I use a software solution, namely TG Pro, that allows the User to control the fan speed. The app also monitors numerous temperatures. Works like a charm.