I have a Gigabyte 970A-UD3 that refuses to Boot from Disc. Trying to run Memtest (before it was Windows 7 disc, had to install OS from inside OS) and the darn thing wont boot up the disc or give me the option to press any key to boot from disc. Even hit F12 in order to select boot and it goes straight to loading OS even if I select from Disc. I can pop any disc into the DVD drive, no issue. I have the BIOS set to boot from disc first, SSD second. Kind of at a loss, trying to solve some other computer issues, but am blocked by this.