daemon

Hi everybody. I have an S Viking case, and it has two knobs for case fan speed control. Unfortunately, the original case fans began making a lot of noise and ended up discarded, and I've replaced them with two Nexus ones. They also died (kind of dusty environment) and I've bought two Arctic Cooling F12 PWM case fans. They have been connected to the motherboard (MSI P35 Neo2) which has only 3-pin connectors. I can see their speed, but I want to be able to control it with the case knobs. The case fans have 4 wires (Black - Ground, Yellow - +12V, Green - RPM Signal, Blue - PWM Signal), and the fan controllers have only two, black and red. Do I connect them to black and yellow (ground and +12V)? Thank you.