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GPU Tweak II can't detect fans connected to the 2080 TI

Caastiel
Level 7
Hi,

I connected two Noctua NF-A12x25 fans to the two external fan headers found on the rog strix 2080 ti, but the fan auto-calibration for the external fan controls in GPU Tweak II are failing. The two fans don't speed up, but when I set a custom curve on it, the minimum starts at 50 degrees. Also, it will only spin up for a few seconds when I am shutting down my pc.

This wasn't the case when I connected ML120 fans to the headers, as they spin up fine, can be auto-calibrated, and also allowed me full control of a custom curve. Any ideas what is wrong?
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