Asus P9D-MH/SAS/10G-DUAL - Manual (Page 157)

ASUS P9D-MH Series 6-15
5. Select Back and follow the onscreen instructions to finish the installation.
4. On the following screen, select USB drive as the driver update medium, select OK,
then press <Enter>.
Please choose the Driver Update medium.
USB drive
other device
OK Back