c-attack

Not exactly. Two pumps means 2x the fluid pressure, but the actual flow rate may not change. Pressure is still useful and some loops may need it. The more vertical travel you have in your loop, the more pressure you need. Other fluid restrictions like extra dense CPU blocks or extreme angular changes all through the loop can add to the flow resistance and make more pressure helpful. However, if you are not pressure restricted, then it won’t change flow rate. My system is very tall and there is a an external radiator below the desk making total vertical travel almost 1m, not including the up/down in the 480mm radiators. Very clear difference in flow rate with one vs two pumps, but even then it was fully functional and effective with one D5. I also use a pump only with no reservoir for the second unit. That doesn’t mean you have to drop the other pump. You can run separate loops for cpu and gpu. You can get creative with your planning and work out a routing scheme to avoid to help keep some balance in the reservoirs. However, as mentioned earlier the one thing you really need to do is make sure they are running the same speed. I’d probably stick with a fixed pump speed for both units, manually changing it when needed to avoid unnecessary frequent pressure changes.

Clean reinstall. You need to delete the prior hierarchy from the old 14 device numbering scheme. There is a lengthy discussion elsewhere. More concise information below. https://www.corsair.com/us/en/explorer/diy-builder/blogs/addressing-over-current-protection-issues-expanding-the-icue-link-system-hub-to-24-devices

Read the whole thread everyone, particularly the Corsair posts. You can try a simple reinstall, but anyone running devices on both channels is going to need to delete the configuration from the old scheme. There also is a linked page on the main site. https://www.corsair.com/us/en/explorer/diy-builder/blogs/addressing-over-current-protection-issues-expanding-the-icue-link-system-hub-to-24-devices/

The forum seems to be blocking Apple iPhone pic formats now, so I can’t immediately upload the photo. However, it comes in at 27mm from center to center.

Sorry. Tiny title on a phone. I’ll see if I can get it later today. But now I am wondering what you mean by “end caps”. You would cap an unused return port on the front of the XD5 pump/res. You don’t cap a cpu block. Do you mean a compression fitting or G 1/4 adapter with a 24mm diameter?

Likely what a lot of people are seeing is a numeration issue. In deliberately simplistic terms, the hub was capable of handling 14 devices before and likely had some type of assignment numbering like: 14-8 = Hub = 1-7 on either side. Now that it’s expanded out to 24 fans it’s something like 24-13 = Hub = 1-12. Some of the fans that were on one channel now are on the other. It would have been messy and long term problematic to split the new 15-24 assignments in half and tack them onto each side of the hub. It also explains why some of us were unaffected. If you have 7 devices or less and were using the original 1-7 channel, then your fan numbering didn’t change. In theory the wizard should overwrite, but there are a lot of things associated with each fan individually. Good time to make sure you have your profiles backed up and clean install. With CUE 5 everyone should have a semi-current series of exported profiles in case you run into trouble. A clean install is the most common successful troubleshooting step.

Full clean install AND registry clean? Can you explain the “no color” part? We can see the AIO, QX fans, and CUE link hub are showing in your screenshot. Does this mean the items are missing from the UI in the underlying menu? They are there but lighting effects do not work?

There's a long thread about this in the troubleshooting section. The upgrade to allow the CUE Link controllers to handle up to 24 fans has messed up the enumeration and chaining. You'll need to do a clean install to clear the old data. The directions are below. Make sure you export any valuable profiles so they can be reimported back in later. This does erase all profiles and settings. https://help.corsair.com/hc/en-us/articles/360025166712-iCUE-How-to-perform-a-clean-reinstallation-of-iCUE If you want to try, go to Windows Settings> Apps and find Corsair iCUE. Click on the drop down menu at the end of the line and select "modify". Follow the prompts for a repair install. This takes 30 seconds and does not delete data. A couple of users mentioned this worked for them without the full wipe. Other users not affected at all, so it does seem to vary a bit.

They have changed some of the underlying associations with this build. It's not going to go back, so everyone is going to need to move forward sooner rather than later. Better to prepare, export your valuable profiles to make current backups, then clean install if there is an issue. It's not guaranteed you will have a fan count issue and some of us updated without encountering this.

It's 35mm from center to center. If I understand your intent, then any 24mm cap would extend only another 4mm on each side.

Yup, but should happen automatically on first load since the new FW is now public. The only issue with adding many CUE Link hubs is you will use up a lot of USB 2 ports and PCI-e cables. While I suspect you have the PSU and powered usb hub to handle it, I don’t how it will work out in reality. Last generation users ran into problems running 3+ Commanders on separate lines. I don’t know if anyone has tried 4 CUE hubs yet. If you want to be the test case, by all means try and let us know. In your position, I might stop at three using the 3rd for XD5 + GPU(?). You’ll also have the 1000D’s Commander Pro in there. That will handle the case logo, the cpu block with an adapter, and any strips you need. I keep waiting for CUE link strips, but we haven’t seen them yet.

There should be a shipping manifest in the package with the new 140mm fan, but frankly it doesn't matter what it says. You don't need to prove which department at Corsair made the mistake. Just show that one was made and get them to correct it. The Zendesk help email you've been corresponding in may have details. The original RMA request should also have the fans listed. If the shipping manifest shows 2x120 and there is a 140mm inside, a picture is likely sufficient to make your point.

No free lunch on this and that 4 way splitter is just that... 4 unpowered connection ports. It's real purpose is to allow you run multiple independent chains back to the system hub without having to run them through each other. Since your radiators are in side by side pairs, I don't see an advantage. You will need 2 CUE Link Hubs for 32 fans. I theory you could do this with three to avoid the 14 fan brightness clipping, but I think a 10% reduction for going 2 fans over (16 per hub) is worth it and these QX are really bright to begin with. One hub for each 480 radiator pair. 8 to one side and 8 to the other. Pump will need to go into one of these chains. I suppose that's what the 4 way splitter is for. You can run the XD5 back to the splitter on one end rather than being forced from a fan end point to the XD5 to the hub. Very case layout specific as to whether it helps. I can't tell if that GPU is block is CUE link of not.

Unfortunately I am not surprised. Respond again to the original ticket and remind them the RMA is for 2x120. Upload a picture of the wrong 140 fan box. It might not even match the shipping invoice.

You will have to leave the Commander Core that delivers power to the H150i Elite Capellix XT. That's the only way for the pump to get power, even if you don't use the fan ports. The Lighting Node Pro can go, unless you need it for strips or other 3rd party LED devices. 10 QX fans can run from 1 CUE Link Hub.