Asus Z9PE-D16-10G/DUAL - Manual (Page 86)

4-18 Chapter 4: BIOS setup
Intel(R) I/OAT [Disabled]
Allows you to enable or disable Intel ® I/O accelaration technology.
Configuration options: [Disabled] [Enabled]
DCA Support [Enabled]
Allows you to enable or disable the direct cache access support.
Configuration options: [Disabled] [Enabled]]
VGA Priority [offboard]
Allows you to prioritize between onboard and 1st offboard video device found.
Configuration options: [Onboard] [Offboard]
No Snoop Optimization [VC1]
Due to severe performance degradation, it is not recommended that this bit be set except in
debug mode.
Configuration options: [VC0/VCP/VC1] [VC1]
CPU IIO Bridge Configuration