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GitHub - Max-Sum/HP-fan-proxy: The HPE iLO system tends to over-drive the fans in their servers. This project use an arduino to lower the PWM signal.
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Reading RPM speed of 4Pin Fan from HP Blade Server - Motors, Mechanics, Power and CNC - Arduino Forum
![Amazon.com: GDSTIME 120mm AC 110V 220V DC 12V Powered Fan with Speed Control, for Receiver Amplifier DVR Playstation Xbox Component Cooling : Electronics Amazon.com: GDSTIME 120mm AC 110V 220V DC 12V Powered Fan with Speed Control, for Receiver Amplifier DVR Playstation Xbox Component Cooling : Electronics](https://m.media-amazon.com/images/I/71faeUkXlmL.jpg)
Amazon.com: GDSTIME 120mm AC 110V 220V DC 12V Powered Fan with Speed Control, for Receiver Amplifier DVR Playstation Xbox Component Cooling : Electronics
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My attempt at creating a circuit board that enables 4 PIN aftermarked fans on HP ProLiant servers : r/homelab
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