Hat Top Noctua Fan

I replaced the stock fan on the hat top with oled screen with a Noctua PWM and wired it as mentioned by other users. The fan runs and is able to stop but it’s spinning pretty slow and doesn’t spin faster when at 100% or 25% as set by default in config file. Is there something I need to change to get it to work properly?


Is the fan voltage 5V?

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Yes seems to be the 5v pwm version