Ampro Corporation COM 830 - Manual (Page 67)

Chapter 4 BIOS Setup Description
COM 830 Reference Manual 61
CPU Configuration Submenu
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
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.
Intel(R) C-State tech. Disabled
Enabled
Enable or disable advanced CPU C-state support.