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Hey everybody. So I jut built my new PC, everything went fine until I get an error during boot. The error said "CPU Fan speed error detected". I've browsed this forum for a while and tried a number of suggested solutions, but nothing seems to work. My H100i v2 is installed per manual instructions, so the AIO pump is connected to the CPU_FAN header, which is set to run at 100% in BIOS, but I keep getting the error. Temperatures are with 46 - 58C (Max temp recorded while running Rainbow Six Siege), on idle it stays around 46-50C. Thing is, neither Corsair Link v4 or Corsair iCue detect the AIO, looking at Device Manager and Devices and Printers the water cooler is not listed in those either and it doesn't light up. The AIO was working properly in my previous build, which I disassembled last Thursday. Any help identifying and solving this issue is highly appreciated.

I noticed yesterday when I went in to iCUE that my H100i v2 was not showing up at all. I plugged it in to the MB directly ( I run it through a commander pro normally ) and it still did not show up. Did a quick google search and found that my drivers where the problem. So I remove them and windows reinstall them and after that my H100i v2 is back in iCUE. But now the fan RPM is showing 0RMP. So I reinstall iCUE. I remove all the old paths in the registry, and still nothing. After reinstalling, rebooting 2-3 times Im stuck. I did try installing link ( with iCUE not installed on my system ) but it's the same there. I can see the h100i v2 but the RPM is getting reported as 0. And yes, the fans are spinning and if I run them through the commander pro they report back there speed. I also have tried to change the RPM in iCUE on the H100i v2 it does not change the speed of the fans so it's not a UI bug. I have zero control over it. My Commander pro and Scimitar pro RGB works without problems in iCUE. Before I reinstall Windows to really exclude that it is a software problem. Do anyone know what more I can try or have a fix for this?

Hi Guys, I'm new to this forum and just recently purchased H100i v2. So I'm having a bit trouble here with my H100i v2 as the device was recognized by the device manager but with status as I quoted below: "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)" Which in result, the H100i v2 was not detected by Corsair Link. I tried to look-up to the registry where H100i v2 USB was located and tried to look at the Device Parameters to see whether there's any fix I can make, however, the Device Parameters was empty. Nothing. Just (Default) with value not set. I tried the SIV as well, looking up to USB Bus, and the H100i v2 was detected but the Device Information says "I/O Error 31 A device attached to the system is not functioning". Anyone else experienced same problems and found a fix? Any help will be much appreciated. Btw, the fans are working just fine. I can configure the fans from the BIOS. My specs are (if relevant): MB: Asus Z170 Pro Gaming Aura GPU: Palit Gamerock GTX 1070 8GB CPU: i5 6600k [uPDATE] The problem was fixed using older Corsair Link. But, I'm still curious why the latest Corsair Link software was causing the trouble.... [uPDATE 2] Referring to replies below, was suggested to look more at the forums and solved! :D

Hello everyone Tonight I replaced my H100i v2 stocks fans with the SP120s. However, I have seen a significant rise in temperature after doing so. 35c to 65c while idle. And 45c to 75c while gaming. Anyone have any ideas why this could be?