User's Manual

QPI Configuration Parameters
DescriptionName
The Intel QuickPath Interconnect (QPI) link frequency, in gigatransfers
per second (GT/s). This can be one of the following:
• Auto—The CPU determines the QPI link frequency.
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QPI Link Frequency
USB Configuration Parameters
DescriptionName
Whether the system supports legacy USB devices. This can be one of
the following:
• Disabled—USB devices are only available to EFI applications.
• Enabled—Legacy USB support is always available.
• Auto—Disables legacy USB support if no USB devices are
connected.
Legacy USB Support
Whether all physical and virtual USB devices are enabled or disabled.
This can be one of the following:
• Disabled—All USB devices are disabled.
• Enabled—All USB devices are enabled.
All USB Devices
Whether the rear panel USB devices are enabled or disabled. This can
be one of the following:
• Disabled—Disables the rear panel USB ports. Devices connected
to these ports are not detected by the BIOS and operating system.
• Enabled—Enables the rear panel USB ports. Devices connected
to these ports are detected by the BIOS and operating system.
USB Port: Rear
Whether the front panel USB devices are enabled or disabled. This can
be one of the following:
• Disabled—Disables the front panel USB ports. Devices connected
to these ports are not detected by the BIOS and operating system.
• Enabled—Enables the front panel USB ports. Devices connected
to these ports are detected by the BIOS and operating system.
USB Port: Front
Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5
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BIOS Parameters by Server Model
Advanced BIOS Parameters for C420 Servers