Lenovo System x3300 M4 Installation And Service Manual page 110

– CPU C-States
Select this choice to enable or disable ACPI C2 Processor Power states. It will be effective after the
next system reboot.
– Package ACPI CState Limit
Select this choice to determine the level of C-state. Selecting a higher C-state limit allows the
microprocessors to consume less power when they are idle. If you experience problems with legacy
operating systems, set the ACPI Cstate limit to C2.
– Power/Performance Bias
Select this choice to determine how the power management of the microprocessor is controlled.
You can choose either Platform Controlled (system) or OS Controlled (operating system) to control
the setting. Not all operating systems support this feature.
– Platform Controlled Type
Select this choice to determine how to balance between performance and power consumption.
Choosing Maximum Performance will disable power management functions and allow the most
aggressive use of turbo. Choosing Minimal Power will maximizes the use of power management
features for least power consumption and disable turbo.
– Legacy Support
Select this choice to view or set legacy support.
Note: In the legacy mode, this system has limited ROM space for installed options. At most four
network interface cards (NICs) are supported for legacy PXE boot. If more than four NICs are installed,
legacy PXE boot will not be attempted on some of the NICs. To enable legacy PXE boot on the desired
NIC connectors, prioritize the desired NIC connectors by changing the Rom execution Order or disable
the NIC connectors that you do not use from Enable/Disable Adapter Option ROM Support menu.
– Force Legacy Video on Boot
Select this choice to force INT video support, if the operating system does not support UEFI video
output standards.
– Rehook INT 19h
Select this choice to enable or disable devices from taking control of the boot process. The default
is Disable.
– Legacy Thunk Support
Select this choice to enable or disable UEFI to interact with PCI mass storage devices that are
non-UEFI compliant.
– Infinite Boot Retry
Select this choice to enable or disable Infinitely retry the Legacy Boot order.
– BBS Boot
Select this choice to enable or disable legacy boot in BBS manner.
– System Security
Select this choice to view or configure Trusted Platform Module (TPM) support.
– Integrated Management Module
Select this choice to view or change the settings for the integrated management module.
– Power Restore Policy
Select this choice to view or enable the POST watchdog timer.
– Commands on USB Interface Preference
Select this choice to enable or disable the Ethernet over USB interface on IMM.
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System x3300 M4 Installation and Service Guide