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I have an EK-DDC 3.2 PWM pump that gets power via molex and is also plugged into the CPU1 4-pin header on my motherboard. I'm having a problem where the pump will only run at a high RPM (over 4k) or low (somewhere around 1k) and nothing in-between. For example, regardless if it's set in the curve to run at 10%, 20%, 30%, or 40% it will run at 1k and if it's set to 60%, 70%, 80%, 90%, or 100% it will run full tilt. I've done some googling to see if anyone else has had a similar problem but I couldn't find any solutions. Anyone have any ideas?