I pulled a homer. I have been running 4 120mm fans, two are antec 3 pin fans, 2 are high flow 100cfm fans on my radiator. I switched out the two on the radiator for high cfm delta fans. I didnt realize at the time but this is way above the limit for the controller, according to the directions. I cannot connect to the controller and after switching back to the 100cfm fans they run at full speed all the time, despite saying 40% speed on the front.

Have I totally fried my controller? Is there anything I can do here, like flashing the firmware, or did I do irrepairable damage.

I love it, it works awesome. I have all six sensors hooked up, and its a great way to diagnose temps, and control my fans.

Well the firmware reset got me into the aquaero, but one fan worked the other ran full speed no matter what. Also when I restart it comes up again in the device manager with yellow exclamation point.

Anything else I can try? Flashing the firmware, etc?

Well I removed the two top fans from the controller, just hooked them straight to 12v, they are antec multispeed at medium. Hooked my two radiator fans (noisy fans) to the other two controllers and voila. I can control them, so I now have a 2 fan controller instead of 4. Not a total loss. I found out that controller 3 was totally toast, no control just 100% voltage passthrough.