I suspect that's exactly what happened.

Just to update that the issue seems to have cleared itself - turned my pc on this evening and no alarm state. I don't recall doing anything that would have done this - certainly not intentionally.

Ok. It was working fine before - I had a fan running from it. There's no way to try to "reset" the alarm state?

My quadro's fan channel 3 has been in an alarm state since I accidentally plugged in a ddc PWM connector which was wired incorrectly. The message on the fan page states "Alarm: short circuit, fan output deactivated" - is there a way to deactivate this alarm? There is nothing currently plugged into that channel - I've tried plugging in other (correctly wired) 4-pin connectors to clear the alarm to no avail. Have I damaged something? Thanks