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62 Using the System Setup Program and UEFI Boot Manager
Power Management Screen
Option Description
Power Management
(Active Power Controller
default)
Options are OS Control, Active Power Controller,
Custom, or Maximum Performance. For all but the
Custom setting, the BIOS pre-configures the power
settings on this screen as follows:
•
OS Control
sets the processor power to
OS DBPM
, the
fan power to
Minimum Power
, and the memory power
to
Maximum Performance
. In this setting, all processor
performance information is passed from the system
BIOS to the operating system for control. The operating
system sets the processor performance based on
processor utilization.
•
Active Power Controller
sets the processor power to
System DBPM
, the fan power to
Minimum Power
, and
the memory power to
Maximum Performance
. The
BIOS sets the processor performance based on processor
utilization.
•
Maximum Performance
sets all fields to
Maximum
Performance
.
If you select Custom, you can configure each option
independently.
CPU Power and
Performance
Management
Options are OS DBPM, System DBPM, Maximum
Performance, or Minimum Power.
Fan Power and
Performance
Management
Options are Maximum Performance or Minimum Power.
Memory Power and
Performance
Management
Options are Maximum Performance, a specified
frequency, or Minimum Power.
book.book Page 62 Wednesday, February 17, 2010 6:17 PM