Using the System Setup Program and UEFI Boot Manager
51
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 CPU 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 CPU 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
.
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 51 Wednesday, March 3, 2010 10:37 AM
