Strange Problem

[LastThoughts]

Hey guys,

 

I got a really strange problem on my pc. It was working just fine, then i decided to uninstall my GPU (GTX 770) from my main rig and reinstall it on a other computer. In the other pc, I install Windows 10 Tecnhical Preview and some drivers. In the meanwhile, I use the iGPU on the i5 3570k on my main rig. So, after installing everything I has planned, I reinstall the my GPU on my main rig. But, for my surprise, the Windows didn`t boot (appears no signal in the monitor) on the main rig. After try reinstalled the GPU (which didn`t work), I remove it from my PC and try to use the iGPU again. And, voilá, the windows start normally. So, I try to uninstall the nvidia drivers using the DDU, and reinstalled again, which didn`t work. Strangely enough, when I select the iGPU as my primary display on the BIOS, the windows boots even with the GTX 770 installed, and on windows, I can use it normally... WTF?

 

So, do you guys have some explanation for this? And how to solve my problem without needing to select the iGPU as my primary display on the BIOS?

 

Thanks