Owners Manual

Option Description
Internal USB
Port
Enables or disables the internal USB port. This option is set to Enabled by default.
Integrated RAID
Controller
Enables or disables the integrated RAID controller. This option is set to Enabled by default.
Integrated
Network Card 1
Enables or disables the integrated network card.
I/OAT DMA
Engine
Enables or disables the I/OAT option. Enable only if the hardware and software support the feature.
I/O Snoop
Holdoff
Response
Selects the number of cycles PCI I/O can withhold snoop requests from the CPU, to allow time to
complete its own write to LLC. This setting can help improve performance on workloads where
throughput and latency are critical.
Embedded Video
Controller
Enables or disables the Embedded Video Controller option. This option is set to Enabled by default.
SR-IOV Global
Enable
Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option
is set to Disabled by default.
OS Watchdog
Timer
If your system stops responding, this watchdog timer aids in the recovery of your operating system. When
this option is set to Enabled, the operating system initializes the timer. When this option is set to
Disabled (the default), the timer does not have any effect on the system.
Memory Mapped
I/O above 4 GB
Enables or disables the support for PCIe devices that need large amounts of memory. This option is set to
Enabled by default.
Mezzanine Slot
Disablement
The Slot Disablement feature controls the configuration of mezzanine cards installed in the specified
slots. Only mezzanine card slots that are present on your system are available for control.
Related references
Integrated Devices on page 43
Related tasks
Viewing Integrated Devices on page 43
Serial Communication
You can use the Serial Communication screen to view the properties of the serial communication port.
Related references
System BIOS on page 26
Related tasks
Serial Communication details on page 45
Viewing Serial Communication on page 44
Viewing Serial Communication
To view the Serial Communication screen, perform the following steps:
Steps
1. Turn on, or restart your system.
2. Press F2 immediately after you see the following message:
F2 = System Setup
44
Pre-operating system management applications