PCI Configuration Submenu

Use this submenu to apply alternate settings to PCI devices. Normally, you do not need to modify these settings, as the factory default settings provide the most compatible and optimal configuration possible.

• 64-Bit Memory Mapped IO—This setting enables or disables support for memory-mapped I/O above the 4 GB boundary. It can be useful when using a 64-bit OS and a large number of PCI devices. The default value is Enabled.
• PCIe Max Payload Size—This setting determines the maximum payload size of PCI Express devices. Valid options are Auto and 128 Bytes. The default value is Auto, which allows the BIOS to choose an optimal value based on which devices are present.
• PCIe Max Read Request Size—This setting determines the maximum size of memory read requests for PCI Express devices. Valid options range from 128 bytes to 4096 bytes. The default value is 4096 Bytes, which allows the BIOS to choose an optimal value based on which devices are present.
• PCI System Error Reporting—This setting enables/disables reporting of PCI system errors. The default value is Enabled.