I just got my PC built and I able to boot and does the beep to show that it is running. The problem is it just keeps doing the POST and I can't get to the BIOs settings. I put a windows 7 OS disk in the disk drive during the small period I have to put in and it doesn't do anything. It says it reads a keyboard and mouse in the usb ports but that doesn't help when I press delete during the time it allows me to. Any ideas would be appreciated.