Question GPU not detected on new build ?

[AniteK]

Hello,
I'm in dire need of some help here. I just spent all my savings on a new build and haven't built my own PC in years.

Specs:
MB: Asus Prime B660 Plus D4
CPU: Intel i7-14700KF / Intel Celeron G6900
GPU: MSI GeForce GTX 1060 6GB Ti / MSI GTX 980
RAM: Fury Beast 2x16GB DDR4
SSD: Samsung Evo 980 Pro 1TB
PSU: Corsair 650W

When I first assembled the components, the white VGA LED on the motherboard constantly lit up using the i7 CPU and the GTX 1060 Ti GPU. Then I mounted the Celeron G6900 with no GPU installed, updated the BIOS from the old version to the newest 2801, then mounted the i7 and GTX 1060 GPU again. I still had the same problem: white light on the VGA LED and a black screen.

Then I mounted the Celeron CPU again, now with the GTX 1060 GPU installed, and I am getting the same problem: the white LED light on the motherboard lights up and the screen remains black. I have tried both PCIe slots, and with an MSI GTX 980 GPU, but I get the same result.

Does anyone know what is going on?

Are the CPUs and motherboard not reading PCIe version 3.0? Is there anything I can do in the BIOS?

 

[helpstar]

reset the BIOS and try booting the I7 with the 1060, connect the monitor to the 1060 and not the motherboard´s video ports

 

[AniteK]

reset the BIOS and try booting the I7 with the 1060, connect the monitor to the 1060 and not the motherboard´s video ports

I have reset the CMOS, all test with GPU mounted has been with DP cable on GPU to monitor. When I disable the ReSizeBar in BIOS, and uses the Celeron CPU i can get display from DP port in MB, but not in GPU.

 

[AniteK]

I have solved my issue, it turns out that the pc can’t boot when using DP in the GPU, only HDMI works. It only took 3 - 4 afternoons to figure it out. I feel stupid.

 

[helpstar]

might be a faulty DP cable, some are wrongly manufactured