Acer AW2000h-AW170h - Manual (Page 85)

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• S.M.A.R.T. For Hard disk drives - Self-Monitoring Analysis and
Reporting Technology (SMART) can help predict impending drive
failures. Select Auto to allow the BIOS to automatically detect hard
disk drive support.
• 32Bit Data Transfer - Select Enable to enable the function of 32-bit
IDE data transfer.
IDE Detect Timeout (sec): Use this feature to set the time-out value for
the BIOS to detect the ATA, ATAPI devices installed in the system.
PCI/PnP configuration
Clear NVRAM: This feature clears the NVRAM during system boot. The
options are No and Yes.
Plug & Play OS Selecting: Yes allows the OS to configure Plug & Play
devices. (This is not required for system boot if your system has an
oerating system that supports Plug & Play.) Select No to allow the BIOS
to configure all devices in the system.
PCI Latency Timer: This feature sets the latency timer of each PCI device
installed on a PCI bus.
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.