Table 17. Serial Communication details (continued)
Option
Description
Redirection After Boot
Enables or disables the BIOS console redirection when the operating system is
loaded. This option is set to
Enabled
by default.
System Profile Settings
To view the
System Profile Settings
screen, power on the system, press F2, and click
System Setup Main Menu
>
System
BIOS
>
System Profile Settings
.
Table 18. System Profile Settings details
Option
Description
System Profile
Sets the system profile. If you set the System Profile option to a mode other than
Custom
,
the BIOS automatically sets the rest of the options. You can only change the rest of
the options if the mode is set to
Custom
. This option is set to
Performance Per Watt
(DAPC)
by default. Other options include
Performance
,
Performance Per Watt (OS)
and
Custom
.
NOTE:
All the parameters on the system profile setting screen are available only when
the
System Profile
option is set to
Custom
.
CPU Power Management
Sets the CPU power management. This option is set to
System DBPM (DAPC)
by default.
Other option includes
Maximum Performance
,
OS DBPM
.
Memory Frequency
Sets the speed of the system memory. You can select
Maximum Performance
,
Maximum
Reliability
or a specific speed. This option is set to
Maximum Performance
by default.
Turbo Boost
Enables or disables the processor to operate in the turbo boost mode. This option is set to
Enabled
by default.
C1E
Enables or disables the processor to switch to a minimum performance state when it is idle.
This option is set to
Enabled
by default.
C States
Enables or disables the processor to operate in all available power states. C States allow the
processor to enter lower power states when idle. When set to
Enabled
(OS controlled) or
when set to
Autonomous
(if hardware controlled is supported), the processor can operate
in all available Power States to save power, but may increase memory latency and frequency
jitter. This option is set to
Enabled
by default.
Memory Patrol Scrub
Sets the memory patrol scrub mode. This option is set to
Standard
by default.
Memory Refresh Rate
Sets the memory refresh rate to either 1x or 2x. This option is set to
1x
by default.
Uncore Frequency
Enables you to select the
Uncore Frequency
option.
Dynamic mode
enables the processor
to optimize power resources across cores and uncores during runtime. The optimization of
the uncore frequency to either save power or optimize performance is influenced by the
setting of the
Energy Efficiency Policy
option.
Energy Efficient Policy
Enables you to select the
Energy Efficient Policy
option. The CPU uses the setting to
manipulate the internal behavior of the processor and determines whether to target higher
performance or better power savings. This option is set to
Balanced Performance
by
default.
Monitor/Mwait
Enables the Monitor/Mwait instructions in the processor. This option is set to
Enabled
for all
system profiles, except
Custom
by default.
NOTE:
This option can be disabled only if the C States option in the Custom mode is set
to disabled.
NOTE:
When C States is set to Enabled in the Custom mode, changing the Monitor/
Mwait setting does not impact the system power or performance.
Workload Profile
This option allows the user to specify the targeted workload of a server. It allows
optimization of performance based on the workload type. This option is set to
Not
Configured
by default.
Pre-operating system management applications
17
