9.4.4 CPU Configuration Submenu for conga-X945 variants only
Feature
Options
Description
Processor Info Block
No option
Displays the processor manufacturer, brand, frequency, and cache sizes.
MPS Revision
1.1
1.4
Select the revision of the multi processor support interface that should be
offered by the BIOS. Set back to 1.1 in case problems occur with older non
ACPI operating systems.
Max CPUID Value
Limit
Disabled
Enabled
When
Enabled
, the processor will limit the maximum CPUID input value to
03h
when queried, even if the processor supports a higher CPUID input
value.
When
Disabled
, the processor will return the actual maximum CPUID
input value of the processor when queried.
Limiting the CPUID input value may be required for older operating
systems that cannot handle the extra CPUID information returned when
using the full CPUID input value.
Execute Disable Bit
Disabled
Enabled
Enable or disable the hardware support for data execution prevention.
Core Multi-Processing Disabled
Enabled
When set to disabled, the second core in a dual core processor system is
not used.
Intel SpeedStep tech.
Maximum Speed
Minimum Speed
Automatic
Disabled
Maximum: CPU speed is set to maximum.
Minimum: CPU speed is set to minimum.
Automatic: CPU speed is controlled by the operating system.
Disabled: No SpeedStep, default CPU speed.
Note: This option is not available for Celeron M CPUs
Max. CPU Frequency
(Available options
depend on
processor)
Allows to reduce the maximum processor frequency. This limits the
maximum frequency the CPU can be set to when SpeedStep is set to
Automatic or Maximum Speed. Used when the system is AC powered.
Note: This option is not available for Celeron M CPUs
Max. CPU Frequency
(Battery)
(same as above)
Allows to reduce the maximum processor frequency. This limits the
maximum frequency the CPU can be set to when SpeedStep is set to
Automatic or Maximum Speed. Used when the system is battery powered.
Note: This option is not available for Celeron M CPUs. This node is only
visible when the system is connected to a congatec battery system.
On Demand Clock
Modulation
Disabled
75%
50%
25%
Allows a reduction of the performance of the processor by utilizing clock
modulation. The value indicates the CLOCK ON to CLOCK OFF interval
ratio. E.g. 75% results in a performance decrease of about 25%.
Note: This option is only available for Celeron M CPUs
C1 Enable
Standard
Enhanced
Enable standard or enhanced C1 support.
C2 Enable
Disabled
Standard
Enhanced
Disable or enable C2 support in standard or enhanced mode.
C3 Enable
Disabled
Standard
Enhanced
Disable or enable C3 support in standard or enhanced mode.
C4 Enable
Disabled
Standard
Enhanced
Disable or enable C4 support in standard or enhanced mode.
Hard C4 Enable
Disabled
Enabled
Enable or disable hard C4 support (additional power reduction compared
to C4).
Copyright © 2006 congatec AG
X945m13
81/102