User's Manual (1.0b)
Chapter 4: AMI BIOS
4-9
SMM Save State
Select Enable for SMM (System Management Mode) Save state support which is
used for advanced power management and other operating-system-independent
functions. The options are Enable and Disable.
Cbox Pipe Serial Mode
Cbox is the caching agent that works as the external cache and system interface
unit within Intel 7500 (or newer) series processors. Select Pipe Serial Mode Enable
to allow multiple serial ports used by different host/client virtual machines to connect
together (pipe) for processor-interconnect and system-interface communications.
The options are Pipe Serial Mode Enable and Pipe Serial Mode Disable.
Advanced Power Management Conguration
Advanced Power Management Conguration
Power Technology
Select Energy Efcient to support power-saving mode. Select Custom to cus-
tomize system power settings. Select Max Performance to optimize system
performance. Select Disabled to disable power-saving settings. The options
are Disabled, Energy Efcient, and Custom. If the option is set to Custom, the
following items will display:
CPU P State Control (Available when Power Technology
is set to Custom)
EIST (P-states)
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically
adjust processor voltage and core frequency to reduce power consumption and
heat dissipation. The options are Disable and Enable.
Turbo Mode
Select Enabled to use the Turbo Mode to boost system performance. The options
are Enable and Disable.
P-state Coordination
This feature is used to change the P-state (Power-Performance State) coordi-
nation type. P-state is also known as "SpeedStep" for Intel processors. Select
HW_ALL to change the P-state coordination type for hardware components only.
Select SW_ALL to change the P-state coordination type for all software installed
in the system. Select SW_ANY to change the P-state coordination type for a soft-
ware program in the system. The options are HW_All, SW_ALL, and SW_ANY.