3.4.2 North Bridge Configuration

Primary Graphics Adapter

This allows you to select [PCI] or [PCI Express] as the boot graphic adapt- er priority. The default value is [PCI Express].

PCIE 1 Link Speed

This allows you to select PCIE 1 Link Speed. The default value is [GEN2].

PCIE 2 Link Speed

This allows you to select PCIE 2 Link Speed. The default value is [GEN2].

PCIE 2 Link Width

This allows you to select PCIE 2 Link Width. The default value is [x8].

PCIE 4 & PCIE 5 Link Speed

This allows you to select PCIE 4&5 Link Speed. The default value is [GEN2].

Intel(R) VT for Directed I/O Configuration

Intel(R) VT-d

Use this item to enable/disable Intel(R) Virtualization Technology for Directed I/O.

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ASRock Fatal1ty X79 Professional manual North Bridge Configuration