HDD Fan Control

Reduce Fan Noise and Protect your Drive.

What is the minimum fan speed

Can I set minimum fan speed below 1000rpm?
1000rpm is the lowest possible speed for the HDD Fan, it is a limit imposed by the iMac itself (set by Apple) not by HDD Fan Control. HDD Fan Control only controls the HDD Fan, this is by design to allow the system to run as normal as much as possible.