Hello, I've tried reading my motherboard's manual (MSI P6N SLI Platinum MS-7350) and tried googling for my answer with no luck. I just replaced my old geforce 9800 graphics card with a geforce 750ti because I thought my old graphics card was bad. My screen keeps randomly going black with a "no dvi signal" message. I've done a fresh install of windows 10, I reinstalled drivers, I swapped monitors, and now I've changed graphics cards. I'm beginning to think that my pci e slot is bad. So I installed the card in the 2nd slot but it won't send any signal to the monitor. I tried to find the options to change the 2nd slot to primary in bios but can't. The manual doesn't mention anything about it. Does anyone know how to do this? Thanks in advance for any answers.