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Old 10-11-2017, 10:27 AM
pber2025 pber2025 is offline
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Default HD140 RGB problem

Not sure if I'm posting this in the right forum or not. I'm installing 5 HD140 fans in my new Obsidian 750D airflow edition. All fans are connected to a 6 port RGB hub and that hub is connected to a Commander Pro. Everything is at the latest firmware and software.

All fans are spinning OK. Problem is only with the RGB part. The fans are connected in the sequence I would like them to be used, using port 1 to 5 on the RGB hub.

At first I only had the two fans connected to port 1 and port 2 with lights on out of the 5 fans connected to the RGB hub. To isolate the problem I switched fan 2 and fan 3 on the RGB hub to see why fan 3 was not lighting up. Once I did this fan 1, 2 and 3 light up, out of sequence but Ok.

So after more tests I figured out that one specific fan needs to be plugged last for all fans to work correctly. If I plug this specific fan in port 2, only fans in port 1 and 2 will turn on. If I plug that fan in port 4, fan in port 1 to 4 will turn on.

In the end I plugged that specific fan in port 5 and change the direction of my sequence and all fans work. So now my fan sequence is 1-5-4-3-2, instead 1-2-3-4-5, not a big deal but I'm curious if someone knows how to fix this.

Last edited by pber2025; 10-11-2017 at 10:45 AM.
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