So iv'e been stuck using a very old Wi_Fi adapter on my newly built PC because I can't get the LAN drivers to work on my ASUS Crosshair V Formula (Non-Z Version). OTher people on the Internet say I need to see if LAN is enabled in the BIOS. I can't seem to get into the BIOS to save my life. There isn't a UEFI tab under the recovery settings (Windows 8.1) and I don't know what button to press on boot up because every time I start my PC up it's a black screen for a few seconds then the screen that shows what devices are installed such as hard drives, SSDs, mice and keyboards detected, etc. After that it goes straight to the windows login screen. Please help!