CPU and PCIE Lanes

[mitchyams]

Hello everyone,

I have been having issues with my computer not detecting my GPU. I have tried everything under the sun, and was just wondering if a faulty CPU could cause the PCIE lanes to not recognize any graphics cards. I have an Intel i5 6600K, with an MSI Z170 Krait 3X mobo, and have tested a GTX 560 and 970. I have used two different PSUs, one is 650 watts and the other 1000 watts. I have even sent back the mobo a few times thinking it was a faulty mobo, but I am starting to believe the CPU is at fault, due to it being the only component that I haven't changed out. The GPUs are not being recognized in the BIOS under the Hardware monitoring tab in the BIOS. This is a brand new build, and I made sure that I used the 6+2 cables provided by both power supplys running on the 12 volt rails, so I am certain it isn't a power related issue because the fans on both GPUs spin. 

 

 

[NTDaws]

Did you press the power button?

[NTDaws]

Just kidding, it's possible it could be the CPU, try replacing it and see if the GPU works.

[mitchyams]

Just now, Dawson Wehage said:

Did you press the power button?

Yes, I did press the power button. It can display everything on a monitor if I use the onboard graphics, the GPU doesn't show up in device manager. I have uninstalled drivers, disabled the iGPU in BIOS, made the PCIE Slots detect video first before the iGPU. 

 

Thanks for your response,

Mitch 

[mitchyams]

2 minutes ago, Dawson Wehage said:

Just kidding, it's possible it could be the CPU, try replacing it and see if the GPU works.

Yeah, I am most likely going to do that as soon as possible. I was just curious if the CPU's PCIE controller or whatever could actually cause a problem like this, or if it is a common problem with other people.

 

Thanks,

Mitch

[NTDaws]

Just now, mitchyams said:

Yes, I did press the power button. It can display everything on a monitor if I use the onboard graphics, the GPU doesn't show up in device manager. I have uninstalled drivers, disabled the iGPU in BIOS, made the PCIE Slots detect video first before the iGPU. 

 

Thanks for your response,

Mitch 

That was a joke, I would try replacing the CPU with a different LGA1151 CPU, and see if it performs properly.

[pwn_intended]

Are you using the top PCIe slot on your motherboard?

Have you connected the monitor directly to the GPU and not to the motherboard itself?

[mitchyams]

Just now, Dawson Wehage said:

That was a joke, I would try replacing the CPU with a different LGA1151 CPU, and see if it performs properly.

Alrite, will do!

[mitchyams]

Just now, pwn_intended said:

Are you using the top PCIe slot on your motherboard?

Have you connected the monitor directly to the GPU and not to the motherboard itself?

Yea, I tried out all PCIE slots and nothing. I have connected the monitor to the gpu and still nothing.

 

Thanks,

Mitch

[NumLock21]

use onboard

disable secure boot and enable csm

[mitchyams]

Just now, NumLock21 said:

use onboard

disable secure boot and enable csm

Yeah, tried that already, no luck. 

Thanks, 

Mitch

[NumLock21]

4 minutes ago, mitchyams said:

Yeah, tried that already, no luck. 

Thanks, 

Mitch

U sure?