ASROCK Fatal1ty H87 Performance Series, User Manual

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4.4.2 Chipset Coniguration
Primary Graphics Adapter
Select a primary VGA.
VT-d
Intel® Virtualization Technology for Directed I/O helps your virtual machine
monitor better utilize hardware by improving application compatibility and
reliability, and providing additional levels of manageability, security, isolation, and
I/O performance.
PCIE2 Link Speed
Select the link speed for PCIE2.
Share Memory
Conigure the size of memory that is allocated to the integrated graphics processor
when the system boots up.
IGPU Multi-Monitor
Select disable to disable the integrated graphics when an external graphics card
is installed. Select enable to keep the integrated graphics enabled at all times.