Acer AR380 F1 - Manual (Page 103)

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PCI Latency Timer: This feature sets the latency timer of each PCI device
installed on a PCI bus.
PCI IDE BusMaster: When Enabled, the BIOS uses PCI bus mastering for
reading/writing to IDE drives.
SR-IOV Supported: Select Enabled to enable Single-Root I/O
Virtualization (SR-IOV) support, which works in conjunction with Intel
Virtualization Technology to allow multiple operating systems to run
simultaneously within a single computer via natively-shared PCI Express
devices in order to enhance network connectivity and performance.
The options are Enabled and Disabled.
PCI-E Slot1 OPROM: Select Enabled to enable PCI Express slot SXB1.
You can also enable Option ROMs to boot the computer using a
network interface from these slots.
Load Onboard LAN1 Option ROM/Load Onboard LAN2 Option ROM:
Select Enabled to enable the onboard LAN1 or LAN2 Option ROM. This
is to boot computer using a network interface.
Onboard LAN Option ROM Select: Select iSCSI to use the iSCSI Option
ROM to boot the computing using a network device. Select PXE to use
the PXE Option ROM to boot the computer using a network device.
Boots Graphic Adapter Boot Priority: This feature allows you to select
the graphics adapter to be used as the primary boot device.