Repton_3

Thank you @ponytrix. Messy workaround but it works a treat.

Sorry I can't help but I'm glad I'm not the only one with this issue and fan port 1. I have pretty much the same issue as you except I'm using corsair fans and I can't gain control by restarting the service. If I put all fans on max RPM (1,600) port 1 will only run at 1,100. If I set RPM at zero port 1 runs at 500. If I set all fans to the 'quiet' profile and watch the RPM graph, port 1 seems to do the opposite of the other ports. I've reset the CoPro, wiped Icue completely and swapped fans about. Nothing works.

What worked for me. Open Icue and click the cog for settings in the top right hand corner (Icue 4). Turn off "Plugins". Close Icue completley then open it again. Ram should be fixed.