Chapter 4 | BIOS Setup Description |
CPU Configuration Submenu
Feature
Options
Description
Processor Info Block | No option | Displays the processor manufacturer, brand, frequency, and |
|
| cache sizes. |
|
|
|
MPS Revision | 1.1 | Select the revision of the multi processor support interface |
| 1.4 | 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 | Disabled | When enabled, the processor will limit the maximum |
Limit | Enabled | 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 | Enable or disable the hardware support for data execution |
| Enabled | prevention. |
|
| |
|
|
|
Core Multi- | Disabled | When set to disabled, the second core in a dual core |
Processing | Enabled | processor system is not used. |
|
| |
|
|
|
Intel SpeedStep tech. | Maximum Speed | Maximum: CPU speed is set to maximum. |
| Minimum Speed | Minimum: CPU speed is set to minimum. |
| Automatic | Automatic: CPU speed is controlled by the operating |
| Disabled | system. |
| Disabled: No SpeedStep, default CPU speed. | |
|
| |
|
| Note: This option is not available for Celeron M CPUs. |
|
|
|
Max. CPU | (Available | Allows to reduce the maximum processor frequency. This |
Frequency | options depend | limits the maximum frequency the CPU can be set to when |
| on processor) | 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 | (same as above) | Allows to reduce the maximum processor frequency. This |
Frequency (Battery) |
| 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 | Disabled | Allows a reduction of the performance of the processor by |
Modulation | 75% | utilizing clock modulation. The value indicates the CLOCK |
| ON to CLOCK OFF interval ratio. E.g. 75% results in a | |
|
| |
| 50% | performance decrease of about 25%. |
| 25% | Note: This option is only available for Celeron M CPUs. |
|
|
|
Intel(R) | Disabled | Enable or disable advanced CPU |
| Enabled |
|
|
|
|
COM 830 | Reference Manual | 61 |