Have you got a fix for this. I’m having the same issue now myself. I can’t boot my computer it goes into sleep mode or just shuts down.

I'm now getting this error with the new product that I RMA'ed a few weeks ago.  My system will be idle, and power down and display this message on the cap.  I can reboot it and the system comes back online and shows the proper display on the cap.  I checked BIOS for the Pump Fan settings to be set to Temp CPU (Z690 Classified), saved changes and rebooted.  

After idle again, the system powered down completely and showed the message.  I wiggled the mouse for it to wake up, and it came back up as though nothing had failed.  

When this happens, the LED display will sometimes look faded (like the lamp is dimming and going out) and the LEDs on the fans will behave erratically.  The CLCX software will also show the error that the device is not connected.  I've updated BIOS to the latest EVGA has for this board, but it only occurs when system goes into idle state.  

majorp08
Have you found a fix for the error? Plan on buying the 280 version. Haven't heard alot of talk about these coolers online.

No.  Everything I've tried thus far has not worked.  Will have to RMA a second one.  I'm waiting for a response from EVGA's online support, which won't happen until tomorrow.  

Issue I'm having is I can't even install the software. Getting an error saying "CLCx installer check fan mode error! Please reinstall try again!" Support has been helping me today but nothing is working. The cooler itself and fans are working great it's just the software.