Hi, I have just built my custom gaming pc. When i turn it on it brings me to the bios. I set the bluray/dvd drive as the primary booting drive. I put in the windows 7 disc and now when i turn on my pc all it does it go back to the bios and I don't know what is going wrong. This is my first build and i have checked that every wire is where it should be. All I need to do is install windows 7 but my computer won't recognize the disc