ASRock Z490M Pro4 User Manual - Page 71
Chipset Configuration, Primary Graphics Adapter, Above 4G Decoding, SR-IOV Support
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4.6.2 Chipset Configuration Z490M Pro4 Primary Graphics Adapter Select a primary VGA. Above 4G Decoding Enable or disable 64bit capable Devices to be decoded in Above 4G Address Space (only if the system supports 64 bit PCI decoding). 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. SR-IOV Support If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO Virtualization Support. DMI Link Speed Configure DMI Slot Link Speed. Auto mode is optimizing for overclocking. PCIe 2 Speed Select the link speed for PCIE 2. 65 English