AMD HD 6990M and Nvidia Quadro P5200 but only renders on AMD

[SuperMG]

Hello.

 

I have a laptop with two MXM slots.

 

I've had an NVIDIA GPU in master before. I was getting 60% TDP max in the slave card which is the Nvidia Quadro P5200.

 

I wanted to get atleast 90-100% of TDP max usage. It's an Nvidia driver bug between two NVIDIA GPUs... and I thought one AMD GPU could fix that.

 

Then I managed to find a working AMD card as the master GPU for my laptop.

 

It's an Radeon HD 6990M.

Both GPU drivers install but... Only the HD 6990M one seems to get the rendering capabilities.

 

My NVIDIA is at 0% GPU usage everytime.

 

I did the regedit hacks to set the high performance GPU but that didn't do anything.

 

I used NVCleanInstall to install my Nvidia drivers.

 

The AMD drivers are the Catalyst one from 2015

 

What's wrong with it? 

[ssj92]

2 hours ago, SuperMG3 said:

Hello.

 

I have a laptop with two MXM slots.

 

I've had an NVIDIA GPU in master before. I was getting 60% TDP max in the slave card which is the Nvidia Quadro P5200.

 

I wanted to get atleast 90-100% of TDP max usage. It's an Nvidia driver bug between two NVIDIA GPUs... and I thought one AMD GPU could fix that.

 

Then I managed to find a working AMD card as the master GPU for my laptop.

 

It's an Radeon HD 6990M.

Both GPU drivers install but... Only the HD 6990M one seems to get the rendering capabilities.

 

My NVIDIA is at 0% GPU usage everytime.

 

I did the regedit hacks to set the high performance GPU but that didn't do anything.

 

I used NVCleanInstall to install my Nvidia drivers.

 

The AMD drivers are the Catalyst one from 2015

 

What's wrong with it? 

Which registry edits did you do? 

[SuperMG]

44 minutes ago, ssj92 said:

Which registry edits did you do? 

The EnableMsHybrid ones and the DirectX regedit one. I just copied what you did on the other forum.

 

I used the 2016 crimson drivers right now and now I can finally use my NVIDIA P5200 GPU. Not sure for how long...

 

I think the old driver isn't fully compatible for windows 10

 

I got 5700 points on 3dmark TimeSpy with 129W TDP peak.

Edited May 1, 2025 by SuperMG3

[ssj92]

42 minutes ago, SuperMG3 said:

The EnableMsHybrid ones and the DirectX regedit one. I just copied what you did on the other forum.

 

I used the 2016 crimson drivers right now and now I can finally use my NVIDIA P5200 GPU. Not sure for how long...

 

I think the old driver isn't fully compatible for windows 10

 

I got 5700 points on 3dmark TimeSpy with 129W TDP peak.

Post benchmarks for time spy and fire strike here so others can also see and compare in the future. 

 

So it seems like you got it working. Someone else is trying with R9 M290X and there's isn't working but they didn't do the directX part which is also needed 

[SuperMG]

32 minutes ago, ssj92 said:

Post benchmarks for time spy and fire strike here so others can also see and compare in the future. 

 

So it seems like you got it working. Someone else is trying with R9 M290X and there's isn't working but they didn't do the directX part which is also needed 

here

[SuperMG]

On 5/1/2025 at 7:39 PM, ssj92 said:

Post benchmarks for time spy and fire strike here so others can also see and compare in the future. 

 

So it seems like you got it working. Someone else is trying with R9 M290X and there's isn't working but they didn't do the directX part which is also needed 

It always take the NVIDIA GPU now with the Crimson drivers. But I sometimes get an error on OpenCL... Load library failed with error 126.

 

I tried to install NimeZ adrenaline drivers, it fixed the OpenCL issue but I can't no longer render from the NVIDIA GPU.... 

 

Why do they make things complicated. Just be smart when making drivers let people FORCE USE the preferred GPU.

 

I broke everything... I reinstalled the crimson drivers now I get 20fps on heaven benchmark instead of 130fpS

Edited May 2, 2025 by SuperMG3