augeas Posted September 29, 2018 Share Posted September 29, 2018 Hi everyone, About two months ago I decided to upgrade my old NZXT Grid+ to Commander PRO for the one reason of having everything under one roof name it iCUE. One day I simply ordered four Commander PROs and installed them in my workstations. The issue is that I had to RMA each of the COmmander PROs at least once since then. Fans simply stopped spinning on some of the ports. Each of my PCs is very similar. Corsair 200R case with seven Air Series™ SP120 LED Blue High Static Pressure 120mm Fans. Setup: Front - two fans Top - two fans Side - two fans Bottom - one fan Two out of the seven fans I connect using simple fan splitter. https://www.amazon.co.uk/Akasa-AK-CBFA04-15-Splitter-Cable-Fans/dp/B005FWXWPS/ref=sr_1_1?ie=UTF8&qid=1538232143&sr=8-1&keywords=akasa+fan+splitter And recently it occurred to me only the ports where I connected fans through the splitter keep on failing. Am I really doing something wrong here? Corsair and Amazon will hate me soon enough if I keep on sending back a couple of faulty units every other week. I attached some screenshots and a picture of my recent situation where I have to return back another unit! :( I know my fans do not exceed any power limits as far as I am concerned. There has to be some explanation and solution eventually. Let me know your thoughts and ideas! Link to comment Share on other sites More sharing options...
DevBiker Posted September 29, 2018 Share Posted September 29, 2018 I would start by setting the fan configuration to specify that they fans are DC/3-pin fans rather than Auto. Other than that, based on the specs that I see, you should be in good shape. That said, I can't vouch for the accuracy of the 1.0 limit per port that they specify - we've seen several folks with high power draw have issues. Personally, I have several LL, HD and ML fans on 2-way splitters on Commander Pros and haven't had any issues with it at all. Link to comment Share on other sites More sharing options...
Zotty Posted September 29, 2018 Share Posted September 29, 2018 I also have those exact same splitters,, running 8 LL fans off one CoPro in my 1000d,, and 7 HD fans off of one copro in my 570x, had no issues.. but as DevBiker said.. have helped others who have.. yet to help anyone who has had this issue with Corsairs RGB fans attached though... generally noctua's mostly..... Link to comment Share on other sites More sharing options...
augeas Posted September 29, 2018 Author Share Posted September 29, 2018 Thanks for your input guys. I now changed Commander PRO fan settings to 3 pin option across all my machines in a hope it will save the day. I will report back if I have to RMA any of them again. In the meantime, if you have any other ideas, please do not hesitate to share. Link to comment Share on other sites More sharing options...
Zotty Posted September 29, 2018 Share Posted September 29, 2018 all looks ok to me buddy... respectable temps etc across those machines imho.. nothing looks untoward.... Link to comment Share on other sites More sharing options...
augeas Posted September 30, 2018 Author Share Posted September 30, 2018 all looks ok to me buddy... respectable temps etc across those machines imho.. nothing looks untoward.... Thanks Zotty I have to admit when it all works it does a good job and that is one more reason I am so eager to make sure I am not doing anything stupid. I am trying to think, UK suppliers got a really bad batch of these recently. The attached picture does not lie, this is another batch of units I will be posting back to Corsair this week. Yes, Corsair does great support job so far, but I am not sure this is the long-term solution either me or Corsair is looking for. Anyway, have a great Sunday! Link to comment Share on other sites More sharing options...
augeas Posted October 3, 2018 Author Share Posted October 3, 2018 Hi, It seems I did not take long, as one of the units already started showing problems. Port 6 where I have two fans on a splitter started to keep fans at almost max speed, matter what I do. Please check the attached screenshots Any ideas? Link to comment Share on other sites More sharing options...
augeas Posted October 4, 2018 Author Share Posted October 4, 2018 I swapped the two fans on a splitter from port 6 with a single fan from port 5 for now. I will try to use this Commander PRO for as long as it will drive my 7 fans. So, for now, port 1 to 5 operational and port 6 lost its ability to change speed and is stuck at about 1400 RPM. I wonder if port 6 could still work properly with PWM fans. Let me know your thoughts. Link to comment Share on other sites More sharing options...
augeas Posted October 8, 2018 Author Share Posted October 8, 2018 Just four days later and we ended up with unresponsive port 5. This time I am introducing a couple of extra splitters. Port 1 - two front fans on a splitter Port 2 - two top fans on a splitter Port 3 - two side fans on a splitter Port 4 - one bottom fan directly Port 5 - fans do not spin at all (nothing connected) Port 6 - fans stuck on max speed (nothing connected) If anything more fails, it is RMA time again. However, if you have any ideas how to avoid this situation again please let me know. How would you connect 7 fans to prevent Commander PRO failing but still managing all of the fans in iCUE? That is if we do not give up on Corsair just yet. I attached 4 screenshots. Two of them showing the situation before introducing extra splitters. Two other showing my last attempt to get the most out of my failing Commander PRO! :( Link to comment Share on other sites More sharing options...
Zotty Posted October 8, 2018 Share Posted October 8, 2018 Not having much luck with this are you. wish i had something further to suggest dude, Link to comment Share on other sites More sharing options...
DevBiker Posted October 8, 2018 Share Posted October 8, 2018 What kind of fans do you have on these splitters? Link to comment Share on other sites More sharing options...
augeas Posted October 8, 2018 Author Share Posted October 8, 2018 Corsair SKU CO-9050031-WW 120mm Corsair Air Series SP120 BLUE LED High Static Pressure Fan Dual Pack Link https://www.corsair.com/uk/en/LED-Color/Fan-Size/AIR-SERIES-LED-CONFIG/p/CO-9050031-WW Link to comment Share on other sites More sharing options...
Zotty Posted October 8, 2018 Share Posted October 8, 2018 as it stands.. the only difference ii can see between my bending of the rules and your bending of the rules is 4pin pwm controlled vs 3 pin voltage controlled... I have ran both LL and HD fans on splitters for long periods and continue to do so with no issues what so ever...,, thought it worth noting..... Link to comment Share on other sites More sharing options...
dwjp90 Posted October 8, 2018 Share Posted October 8, 2018 I would try running only 6 fans for a period of time and see what happens, perhaps there are other problems here. Link to comment Share on other sites More sharing options...
augeas Posted October 9, 2018 Author Share Posted October 9, 2018 Thanks for your replies. This is really not going anywhere with current setup. My current situation on Intel system Port 1 - two front fans on a splitter Port 2 - DEAD Port 3 - two side fans on a splitter Port 4 - two top fans on a splitter Port 5 - DEAD Port 6 - DEAD The other AMD workstation does not look any better. Port 1 - two front fans on a splitter Port 2 - two side fans on a splitter Port 3 - DEAD Port 4 - two top fans on a splitter (not responsive, cannot change speed) Port 5 - bottom fan Port 6 - DEAD Please check the attached screenshots. Both units are awaiting replacement which should arrive tomorrow. I plan to follow your advice. Intel will be running 7 fans where two fans on the splitter will be replaced with PWM option. AMD will be running 6 fans. I will keep you updated on the progress of my experiment. If you have any other ideas please do not hesitate to share. Link to comment Share on other sites More sharing options...
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