Keeping an eye on a computer's coolers is always a smart idea. Although it is physically impossible to look at a Mac's fans, you can use Macs Fan Control to find out much more then you would when looking at them.

HDD Fan Control will run the fan at the correct speed, and keep your drive cool and safe from overheating. If you are looking for an application to adjust your Mac's fans from stock (and not to control fan noise after replacement disk) we can highly recommend the free smcFanControl or iStat Menus.

Besides reassuring you that they are still spinning, the application can provide you with other useful information, like their RPM, the CPU and HDD or SDD temperature and more. What's more, the application allows you to control the fans, as the name suggests, to reduce noise or cool down your hardware if it overheats. All the information you need is presented on a compact user interface. Fans are listed on the left side of the window and hardware temperatures are displayed on the right side. Each fan is presented together with its current, minimum and maximum RPM values. You can set up your own minimum and maximum fan speeds, for each fan, on a separate window.

Alternatively, you can set a constant RPM value or let the system control your fans automatically. The best part is that Macs Fan Control provides full support for third party hardware as well.

Its real-time monitoring features work even if you have changed your hard drive or SSD. Pros: The application can monitor hardware temperatures and fan speeds on your Mac. Also, it allows you to control the speed of each fan. What's more, the application is compatible with third party hardware. Cons: There are no obvious drawbacks to speak of.

Macs Fan Control gives you full control over your Mac's fans, so you can decide how loud or efficient they should be. You can download Macs Fan Control free. Galaxy s3 gt-i9300 firmware download.