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AMD 8000 High Precision Event Timer Driver

驱动程序High Precision Event Timer for Chipset AMD AMD Version: ; File type: PE SELF-EXTRACTING; File size: ; Release: ;. Current AMD Opteron(tm) and Athlon(tm)64 processors provide prefer HPET[5] or the ACPI PM Timer[6] over TSC. As a result, this TSC drift has value of 0x_, on a processor whose base family is 0xF, returns. experience. The AMD™ series of chipset High Precision Event Timers can be routed only to INTINx inputs 1, 3, 4, 5, 6, 7, 9, 10, 11,


DRIVERS FOR AMD 8000  HIGH PRECISION EVENT TIMER

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AMD 8000 High Precision Event Timer Driver

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AMD 8000  HIGH PRECISION EVENT TIMER DRIVER FOR WINDOWS 10

But if you pick one up, here are five tips and tricks—most straight from AMD—that might help you eke out even more power from this fresh-faced new platform. Use a clean Windows installation rather than a Windows image configured on another processor. From Windows, open an administrative command shell and type: Pick your poison.

Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies. Disclaimer The contents of this document are provided in connection with Advanced Micro Devices, Inc.

DRIVER: AMD 8000  HIGH PRECISION EVENT TIMER

The internal processor clock cycle is determined by the current core-clock to busclock ratio. Intel SpeedStep technology transitions may also impact the processor clock.

That rate may be set by the maximum core-clock to bus-clock ratio of the processor or may be set by the maximum resolved frequency at which the processor is booted. The maximum resolved frequency may differ from the maximum qualified frequency of the processor. The specific processor configuration determines the behavior.

If unaccounted for by the operating system, this can lead to TSC drift across multiple processor cores. Also, on current AMD Dual-core processors, the input voltage and frequency of each core is changed in a locked-step manner. Modern operating systems are well aware of the restrictions and effect of P-state changes on the TSC AMD 8000 High Precision Event Timer current AMD processors and already properly account for this when using the TSC to derive or interpolate time.

DRIVERS AMD 8000  HIGH PRECISION EVENT TIMER

C1-state Change The power savings from entering C1-state are enhanced by a feature only recently enabled on multi-processor and multi-core platforms, C1-clock ramping. This feature significantly reduces the power consumption of an idle core that issues the HLT instruction by dividing down its clock rate relative to its current P-state's input voltage and clock reference rate.

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