Rubber-T Posted November 28, 2022 Share Posted November 28, 2022 I'm trying to connect 20 Corsair fans and would like to control them through icue. 19 Ql120 and 1 Ql140. I'm almost done with the build and ready to install windows but want to be sure I get the wiring right so I don't unintentionally burn something up. Right now i have two thermaltake commander 10 port pwn fan hubs that is sata powered that all my fans are connected to. I'm wondering if i can plug the 4 pin cable going from the thermaltake hub into the corsair commander pro? From looking into this thermaltake hub it sounds like only one fan is detected and the other 9 fans speed is the same as the master fan on the hub. Since it's sata powered i'm assuming it will be safe to plug into the Corsair commander pro. Any help would be greatly appreciated! Link to comment Share on other sites More sharing options...
Rubber-T Posted November 28, 2022 Author Share Posted November 28, 2022 When looking through some other threads I believe I found the answer to my question. Link to comment Share on other sites More sharing options...
BlaiseP Posted November 28, 2022 Share Posted November 28, 2022 @Rubber-T - there should be no issues doing exactly what you want. I use Lampton SP105 fan controllers (10 port PWM controller) connected to a Commander Pro (shortened to CoPro from herein) in both of my machines (9 x PWM 120mm fans across three 360mm radiators for each machine). It also has the added bonus of allowing a single change in ICUE to a CoPro fan port to propagate across all the ports connected of the Lampton SP105. For your scenario: You'll need to use a total of 3 ports on the CoPro... 10 x QL 120 fans via the first Thermaltake controller on 1st CoPro port, 9 x QL 120 fans via the first Thermaltake controller on the 2nd CoPro port and finally the single QL140 fan directly wired to the 3rd port of the CoPro. The reason for singling out the 140mm fan is a limitation of the Commander Pro when creating the fan curve. Though you can specify a fixed PWM speed for a fan, you cannot build a custom fan curve based of PWM percentages (I think the Commander Core XT can). You need to specify an absolute fan speed for each step for the curve. Below are 3 fan curve entries I use for my Corsair ML 120mm Elite fans (specified RPM range is 450 ~ 2000 ) using the liquid temperate as the source... Custom Curve Name Liquid Temp PWM Fan Duty Cycle ML 120 Elite RPM Quiet 20⁰C 25% 500 25⁰C 25% 500 29⁰C 30% 600 33⁰C 40% 800 37⁰C 50% 1000 40⁰C 60% 1200 Balanced 20⁰C 30% 600 25⁰C 40% 800 29⁰C 50% 1000 33⁰C 60% 1200 37⁰C 70% 1400 40⁰C 80% 1600 Extreme 20⁰C 40% 800 25⁰C 50% 1000 29⁰C 60% 1200 33⁰C 70% 1400 37⁰C 80% 1600 40⁰C 100% 2000 For your fans, simply plug in the maximum speed of the QL fans (1500 RPM for the 120mm, 1250 rpm for the 140mm) and multiply it out for each of the six points the CoPro supports for a custom fan curve. eg. Using the Balanced custom fan curve above at 33⁰C / 60% for the QL RGB fans - QL 120 RGB = 0.6 x 1500 RPM = 900 RPM. QL 140 RGB = 0.6 x 1250 RPM = 750 RPM You may end up with entries that calculate below the minimum support RPM speed for a given fan (eg, 25% for the QL 120 RGB fan is 375 RPM); if this happens just use the minimum supported RPM spec. until you pass the minimum RPM threshold. Note: If you use my example curves above, you'll need a total of 6 custom fan (3 each for the QL120mm, 3 each for QL140mm). 1 Link to comment Share on other sites More sharing options...
Rubber-T Posted November 28, 2022 Author Share Posted November 28, 2022 (edited) @BlaisePAppreciate the wealth of information! Easy fix to move that pwm cable to the commander pro in the third slot. Would you have any insight into how I have the commander pro connected? Right now I have two NZXT 4 port usb hubs plugged into both of the motherboard ports. Is it ok to have the commander pro plugged into the nzxt hub or would it be better to plug the commander pro into the motherboard and then use one of the usb ports on the commander pro to plug the other nzxt usb hub into? Edited November 28, 2022 by Rubber-T Link to comment Share on other sites More sharing options...
LeDoyen Posted November 28, 2022 Share Posted November 28, 2022 In general it's better to leave the commander pro USB ports alone 🙂 Better leave the two NZXT hubs on dedicated motherboard ports. With Corsair gear using a lot of software control, it's always best to not limit yourself to a single port bandwidth. Technically it should still work, but it's best to keep the more reliable connexion with the amount of fans you're managing. 1 Link to comment Share on other sites More sharing options...
Rubber-T Posted November 28, 2022 Author Share Posted November 28, 2022 @LeDoyenThanks for the help! Right now i have two nodes plugged into the usb ports on the commander pro. Should be ready for tomorrow thanks to your guy's help! Link to comment Share on other sites More sharing options...
BlaiseP Posted November 28, 2022 Share Posted November 28, 2022 9 hours ago, Rubber-T said: @BlaisePAppreciate the wealth of information! Easy fix to move that pwm cable to the commander pro in the third slot. Would you have any insight into how I have the commander pro connected? Right now I have two NZXT 4 port usb hubs plugged into both of the motherboard ports. Is it ok to have the commander pro plugged into the nzxt hub or would it be better to plug the commander pro into the motherboard and then use one of the usb ports on the commander pro to plug the other nzxt usb hub into? As @LeDoyen stated, keep your all USB cables plugged into the NZXT hubs and leave the Commander Pro USB ports free, it's more reliable. I have a NZXT Internal USB hub (Gen 3) in each of my rigs to manage all of my internal USB connectivity. (Note: Corsair has very recently made their own internal 4 port USB 2.0 hub.) I had an error/typo in my earlier post... 10 hours ago, BlaiseP said: <snip> For your scenario: You'll need to use a total of 3 ports on the CoPro... 10 x QL 120 fans via the first Thermaltake controller on 1st CoPro port, 9 x QL 120 fans via the first second Thermaltake controller on the 2nd CoPro port and finally the single QL140 fan directly wired to the 3rd port of the CoPro. 1 Link to comment Share on other sites More sharing options...
Rubber-T Posted November 29, 2022 Author Share Posted November 29, 2022 @BlaisePThank you! This has helped a lot! Wish I would've known about the Corsair hub otherwise I would have went with that instead. Link to comment Share on other sites More sharing options...
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