navelnugget1

Update: I now have the DSDT override active and working. Does this mean I can have both my iGPU and eGPU running with no errors?

DSDT override is explained in detail with links if need more help at http://forum.techinferno.com/diy-e-gpu-projects/7476-%5Bguide%5D-dsdt-override-fix-error-12-a.html#post102517

How can I tell that DSDT override has worked? And how do I enter it into the registry? With the Qword text, what do I put as the numbers(0x00000000)?

I really need help with a DSDT override. I will post my Device Manager with all of my devices (memory). I stayed up all night last night trying to do a DSDT override with no success. I have iasl and asl. I also have a DSDT editor, but I don't know: 1.exactly what to put after Dword 2. How to fix all errors 3. How to get Large Memory to show up in Device Manager. Please someone tell me a specific way to DSDT override that applies to my devices? The eGPU I'm going to use is a Nvidia GT 640.

You only have a very small PCIe config space aperture locked in by the BIOS of 3.00-3.258. It isn't possible to get an iGPU+eGPU working with that, long with say the NVidia Optimus accelerated internal LCD mode dependenant on the iGPU working. You'll need a DSDT override to get it all working.

Or if using Win8.1 can use Setup 1.30 software to hijaak the iGPU space and cause error 12 against the iGPU instead of the eGPU. This is only a partial solution. DSDT override is the better way to go.

Can you tell me detailed step by step how to do the DSDT override? It's not working when I try it myself. Most pages over it don't give enough detail.

Okay, I'm stuck on the DSDT override. Can you walk me through? Show me what to download and what to change? I've been up all night with no success... time to finally sleep. Hopefully you can help me with this. Also I have Toshiba bios 5.10 if you need it.

You only have a very small PCIe config space aperture locked in by the BIOS of 3.00-3.258. It isn't possible to get an iGPU+eGPU working with that, long with say the NVidia Optimus accelerated internal LCD mode dependenant on the iGPU working. You'll need a DSDT override to get it all working.

Or if using Win8.1 can use Setup 1.30 software to hijaak the iGPU space and cause error 12 against the iGPU instead of the eGPU. This is only a partial solution. DSDT override is the better way to go.

Okay, thank you. So, my pci-e bus doesn't have enough resources to run the eGPU and Intel IGPU?

I want to get a eGPU, and my tolud is 0xC0000000 for my PCI-E Root Complex, but my wireless adapter's memory range is 0xD0780000 and I want to put the eGPU in my wireless adapter slot. Does the wireless adapter's memory range effect tolud? 0xD0780000 is very close to 3.25gb, because it is 3.26gb. Will a eGPU still work in that slot without the 36-bit override? Here is a picture of my devmgmt.msc: Any reply will be perfect!