GTX 1080TI FE Error 43 no signal dillema

[y.elsayed]

Hello,
I have a problem with my 1080ti FE. It worked perfectly till couple days ago and I have put 10+ hours into researching this issue with no answer.
Whenever the GPU is plugged in the pcie, and I plug in a displayport or HDMI into it, I get completely black screen, not even bios picture. No video output at all. (This is with my bios settings at PEG). So I decided to remove the gpu from pcie and plug my hdmi to motherboard and I went into the motherboard and switched to IGP (Integrated graphics card). I plugged the gpu back in the pcie and booted from motherboard video. I go in device manager and there is error 43 under the 1080ti. So it is recognized in windows and bios. I then proceed to uninstall all the drivers using DDU, then reinstall them. After reinstalling the driver, the PC restarts and when I open geforce experience, it says I need to install the drivers again. I do and it's an endless cycle of me installing the drivers and rebooting to find out they haven't been installed. I've tried cleaning the gpu itself with no avail. I've submitted an rma with Nvidia but I believe it's not a hardware failure of the GPU. There is something I am missing I think.
I have also reset CMOS, took out the motherboard battery for 10 minutes and discharged the computer. The fans are spinning.
Last thing Im going to do tonight is fresh install of windows (even though I dont believe the issue is caused by windows since when gpu is plugged to my monitor, the bios screen doesnt show up but Ill reinstall just incase. I will also see whether my PSU has another gpu power cable incase the one I have is defective. If you have any idea what's going on, please let me know. I have checked for the MVP program and it's not there.

PC Specs;
4790K not overclocked
16GB DDR3 ram
Z97 G45 Gaming MSI Motherboard
Cooler Master V650 PSU 650W
H440 Case
H100i CPU cooler
256GB SSD + 1TB HDD

I use 1 cable from my PSU which has 2x 8 pin connectors so I am starting to think one cable isnt providing enough power for the GPU.
I wish I had another PC to test the GPU in but I do not
Thank you!

 

[cin19]

I use 1 cable from my PSU which has 2x 8 pin connectors so I am starting to think one cable isnt providing enough power for the GPU.

Yes, you need to plug in 1x 8pin and 1x 6pin. And you PSU has 4 x 8pin, which are the 6+2 pin. So you are fine, try plug the 8pin + other 6pin into the gtx1080ti FE.