You can hook up the baybus to your PC or an external 12VDC PSU, if you have one. Secure your control unit and start to connect your fans to the fanbus and hook up the Molex connector to the PSU. Once you're ready, fire 'em up!! I used 1 X 120mm 5.1Watts Sunon, 1 X 92mm 2.6Watts Sunon and 1 X 60mm 1.4Watts Sunon for the test. As you can see, each one of the fans wattage is within the rated capacity of the rheostats.

External 12VDC PSU Click to enlarge

Ready for action!! Click to enlarge

In the bottom left picture below, you can see that the PSU is already turned on but not the control unit switch. Thus none of the fan is spinning. All the rheostats are set at the minimum turn. The next picture shows the switch turned on and the 92mm and 60mm fans starts to spin. The 120mm fan failed to start though. Maybe 25 Ohms is a little too much! :O)

All ready here!! Click to enlarge

Time to rumble!! Click to enlarge

The 120mm fan only starts to spin when the control knob is set to almost half way as shown in the bottom left pic. It seems to have a hard time starting at the minimum turn of the rheostats. But once it starts to spin, none of the fans stalled when the rheostats is set back to the minimum turn!! I then cranked the rheostats all the way up just to get the full effect!! Very cool, but noisy!!

Finally it spins! Click to enlarge

None of the fans stalled! Click to enlarge

Full Speed Ahead!!
Click to enlarge

The setup seems to work perfectly. You can now attach it to the front bezel of your PC. Looks like it was factory installed! Now you can have some peace and quiet at last!! I hope this has helped you with your own project or at least gives you an idea for your own setup. Here's the schematic diagram of the setup for your reference;

Looks like factory installed!! Click to enlarge

My personal setup! Click to enlarge

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