Reeven Polariz RFC-04 Fan Controller
Using black on the metal face plate, on the knobs, and the LCD screens appearing black, the Reeven name and the exposed metal rings stand out against them. There is an inset section across the center of the face plate offering a body line which runs between the trio of knobs.
A lot of detail was lost from the front facing image, so we move to the corner to have a better look. There is a groove above and below the center textured section, and the mix of milling marks and the diamond grip texture on the knobs adds a lot of style and functionality in the same design.
The left and the right sides of the fan controller are identical. There is a screw attaching the faceplate at the front edge, and a pair of holes near the back used to mount the controller into a chassis. The Steel components behind the scenes get a thick coating of textured black paint, even though they will never be seen.
Along the back of the RFC-04, we see that the electrical components are enclosed to eliminate any shorting or accidental electrocution potential. However, the fan lead connections, the SATA power connection, the thermal sensor connection, the dip switches, and a jumper for the alarm speaker are all accessible. If you remove the alarm jumper, it breaks the connection and mutes the beep.
We removed the cover to have a look inside, and everything seems pretty standard. Each channel offers a choke, a couple of capacitors, and a few surface mount components to deliver and adjust the wanted voltages. Everything is solidly installed, and even using the connectivity multiple times did not seem to show any wear or flexibility in use.
Using random fans we found in the office, we connected them to the various channels. The Corsair is a 4-pin PWM powered fan, while the other two are standard 3-pin powered fans. We also have the SATA lead from the PSU attached at this point, and just need to turn things on and see how they work.
Jumping the 24-pin connection on the PSU brings the Reeven Polariz to life. At this point, all three channels start by delivering the full 12V, well rather 11.8V which is the actual voltage being delivered.
Playing around with the supplied voltages requires a two-click twist in either direction to raise or lower the voltage in 0.5V steps. The left channels are set to 7.5V and is delivering 7.4 currently, the center channel is delivering what we set, and the right channel is slightly less than the 12V we set it to push. If the voltage is set too low, and the fan stops spinning, we found the alarm would sound to notify you of such a problem.
While we were playing around with the various thermal settings for the temperature alarm, we decided to throw the first switch as well. The Polariz is now still displaying the fan speeds and voltages, but the thermal scale has been changed to Fahrenheit.
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