The rest of the graphics cards are working properly.. (have tested each one by one and only FTW models have the yellow warning sign. hmm.

ty_ger07
With ONLY either one of the FTW cards installed in your computer and NO other cards installed, you did try to uninstall and reinstall the NVIDIA graphics driver, and reboot the computer, right? What was the result? During driver installation, are there any error messages such as "cannot find compatible display adapter", or does the driver install fine, reboot fine, everything fine except for the yellow triangle remaining?

I don't know why you are being extemely vague and not answering questions directly. It is frustrating. Assuming that you are correctly attempting the install the NVIDIA graphics driver, it sounds like the cards are defective.

Did you test the secondary video card BIOS on either card, like I suggested? Like I said, if the cards were purchased used (who knows since you don't answer who you bought them from, either), it's possible someone mined with them in the past and was using a custom BIOS which works in Linux but not Windows. Try booting up with either video card BIOS selected. Just because a video card box appeared to be sealed does not mean that the card is new; it depends where you purchased it from.

Are you plugging the card directly into the motherboard or using a riser cable? If using a riser cable, remove ALL riser cable adapters and try plugging ONLY one of the troublesome FTW model cards DIRECTLY into the motherboard and retry the driver installation and reboot procedure.

If the above gets you nowhere, this is what you should do:
1) Register your EVGA cards (if you haven't already).
2) Create an EVGA support ticket in regards to each card which is mis-behaving.

Good luck!

roythegoose
By first PCI slot do you mean the first PCI 16 slot (the long one)?
Also, is physx driver necessary? I will attempt and update. Thanks.
 
 

Cool GTX
Moving to Cryptocurrency section of Forums
 

roythegoose
I am mining with 6GPUs in one rig. Intel Pentium G4400 Processor has enough PCI lanes.

The Forum members in that section may be able to offer other suggestions
 
I agree with ty_ger07 ---> back to basics: 
 
try 1 card in first PCIe slot directly - No risers
 
remove & reload Nvidia drive [Run DDU in safe mode with reboot, just Nvidia GPU driver & PhysX, clean install]
 
Nothing else in PC
 
use the PSU ports and cables that have worked with other cards
 
Of course:
Never Install or Remove any PCIe device without removing the plug from the wall then discharging the system First
 
Nasty things will happen to your MB and cards as the MB always has power unless unplugged - [you will let the magic smoke out or arc the contacts]
 

roythegoose
Turns out it was an issue with the power supply cable splitters (two 6+2 pins for each ftw), I purchased new ones and the cards work.

roythegoose
FOUR EVGA 1080 SC Gaming Cards are working properly. TWO (EVGA 1080 FTW and FTW2) appear but have the yellow triangle with Error Code 43.  The details read "Device PCI <string of numbers and variable> requires further installation"
 
The drivers are up to date and I tried uninstalling and clean installing multiple older versions to no avail. I switched the risers around and all are functioning. Disabling and re-enabling the GPU results in the same "Device PCI <string of numbers and variable> requires further installation"
 
Could this be a problem with Windows 10 or the GPU itself (they are new out of the box). My mobo is an Asus prime z270a.
 
Does anyone have knowledge about this issue?
 
Cheers
 
 
SOLVED
Turns out it was an issue with the power supply cable splitters (two 6+2 pins for each ftw), I purchased new ones and the cards work. Thanks for all the help/info!