MAX / 100% DC power setting on the header -- No software control -- or the MB will not see the CLC. 

Do not use a PWM fan curve for the header you connect the CLC to.
 
Does Device Manager show Any yellow circles ?
 
Does the Pump USB driver show in Device Manager ? (right click, uninstall - let it reinstall)
 

http://www.evga.com/support/faq/?f=59704
 
Question / IssueEVGA CLC Flow Control software disconnects from USB or shows "No USB Device Found"
 
--------
Excerpt
 
Answer / SolutionIf you are receiving an error message when trying to install EVGA Flow Control or have
disconnecting issues while using the software please try the following steps:

We recommend connecting the CLC fan header to the CPU1 or CPU2 header on your motherboard.

Make sure the fan header setting in BIOS is set to MAX or 100%. Do not use a PWM fan
curve for the header you connect the CLC to.

If your motherboard has a fan header designated for a "Pump" you should connect the CLC
fan header to this specific location.

If you continue to have this issue or have a related problem without a solution, please
contact EVGA support

Thank you

Great points bob
 
yea, what he said .... lol

Okay, so here's an update: We've made progress but it's not there yet. A step in the right direction, though.
 
As per some of the above posted content, I changed the "to motherboard" connecter to the AIO_PUMP header, and placed the closest fan on the CPU header.
 
This allowed the MB to get an AIO Pump Speed reading. The caveat to this feat is that there is no driver for the pump that has been installed, and zero yellow circles in the device manager. I can't find the pump USB driver listed.

I'm going to try to uninstall flow controls and see if that helps.

Sylv0x
No sign of drivers anywhere.
 
Ideas?

Go to EVGA Drivers and BIOS Downloads..Open the 'Other Products' tab..Select 'Closed Loop Coolers' from the Category..Select 'All' as the Part Number..Select 'Driver' from the Type..Uncheck 'Show Latest Driver' (to show the complete list) and then click Submit.
 
You can click 'View' to read the notes for more information on each version.
 
You should be using the latest version, but as happens with other software/drivers, sometimes older versions might work better. 

I installed Flow Control and it puts a Driver folder in the C:\Program Files (x86)\EVGA\Flow Control folder with drivers in it here..Not sure if that's what you or not..Of course it tells me CPUWB (CPU Water Block) "Device not found" when I open Flow Control because I don't have an EVGA CLC cooler..You can try it and see how it rolls.
 
Not sure what else to tell you about it.

Yep yep..x86 would be 32-bit and x64 would be 64-bit.

Would the flow control being in the 32 bit folder make any difference? I just have program files which is not labeled x64 but from my understanding it's the x64 if it's unlabeled since it's the main file system for the OS.

I'm running an i7 8700k on the z370 with win7 x64 professional. I wonder if there's an issue because of that.

I'm not inept when it comes to tech, but I've never experienced 32bit folders vs 64, or any of their interactions.

You're welcome.
 
All I can tell you is that you can get either the 32-bit or 64-bit software from the download page, you need the 64-bit, and run the installer to install the software along with the included Asetek USB Controllers driver..Might want to right-click on the installer and 'Run as administrator' and see if it matters.
 
If it still don't work, I don't know..You can always Contact EVGA Customer Service..Other people have problems with it too.
 
Good luck.

That Asetek USB driver installs the first time you ran the setup, or should have, did for me..After the first install, it won't ask you to install the driver again..I dunno, uninstall it all, delete the leftover folders, restart your PC  and try another software version.
 
Going back to a Windows restore point before you installed the software, then trying again, could be another option too.

Something I noticed is that when you install the Flow Control software, it also installs LED Sync along with it..Maybe try just uninstalling LED Sync and leave Flow Control be, and restart your PC.
 
That's totally all I can tell you..The software seems broken..We tried.

Well,
 
The EVGA was returned, and I grabbed an NZXT instead. RIP the EVGA dream.
The NZXT worked instantly, so.

Thank you all for the help.

I won't!

I've got a few other EVGA parts so I'm still part of the fam.

Trying to figure out the vertical GPU setup in the DG-75 since it's also a bit, uh, backwards.

Awful amount of problems with such an easy hw piece. I'm very dissappointed and nobody is turning from support it has been a week.

You guys aren't alone in this, I have had this problem and have talked to EVGA multiple times about it. Their advice is always to uninstall and resintall. Never works. Then they tell me itll be fixed in the future, also never happens. Was hoping X1 software compatibility would fix the issue as I assumed the issue was communication between XOC & Flow Control, nope.