Cisco Systems 57712, UCSCPCIEBTG manual 245

BIOS Parameters by Server Model

Advanced BIOS Parameters for C420 Servers

QPI Configuration Parameters
Name	Description
QPI Link Frequency	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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USB Configuration Parameters
Name	Description
Legacy USB Support	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.

All USB Devices	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.
USB Port: Rear	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: Front	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.

Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5

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