Question Fan & LED control button not working on Zalman M3 Plus case ?

Apr 17, 2021
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Hi all! Yesterday I built a new PC with a Zalman M3 Plus case. It has a controller that switches between high and low speeds. The fans and leds are working but the problem is that this button appears to not work at all. I tried a lot of things but I am not able to fix this. Do you have any idea what I'm doing wrong? Thanks in advance!
 

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