The process of downloading the Asus M5A99FX PRO R2.0 AMD AHCI/ RAID Driver 1.2.001.0331/ 3.31540.26 Beta for Windows 8 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Asus M5A99FX PRO R2.0 AMD AHCI/ RAID Driver 1.2.001.0331/ 3.31540.26 Beta for Windows 8 driver from the primary server - this is the manufacturer’s AMD official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Asus M5A99FX PRO R2.0 AMD AHCI/ RAID Driver 1.2.001.0331/ 3.31540.26 Beta for Windows 8 diver.