blocks|key|2730147|text|From+Windows+Native+Processor+Performance+Control(document+link)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2730148|P-state策略的|2730149|参数Windows处理器性能状态控制的几个参数可以通过注册表项配置。提供这些密钥的目的是，OEM和系统设计人员可以调整Windows处理器电源管理功能的性能，以最适合特定的平台设计，并允许进行调整，以帮助实现最大的电池寿命和实现最佳的系统性能。|blockquote|2730150|2730151|2730152|并且您必须重新启动才能使更改生效。|2730153|entityMap|0|LINK|mutability|MUTABLE|url|http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBIQFjAA&url=http%253A%252F%252Fdownload.microsoft.com%252Fdownload%252F5%252F7%252F7%252F577a5684-8a83-43ae-9272-ff260a9c20e2%252FWindows%252520Native%252520Processor%252520Performance%252520Control.doc&ei=d11lTL2bCoL-8AbmlPXbCA&usg=AFQjCNHRjYQcalrjHPt8E4F5_ifnS4PmKA&sig2=EzQnd5b6hQGt0ZcgmN5pDg^0|0|1S|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$]]|$1|I|3|-4|5|6|7|10|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|11|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

<a href="http://www.google.com/url?sa=t&amp;source=web&amp;cd=1&amp;ved=0CBIQFjAA&amp;url=http%3A%2F%2Fdownload.microsoft.com%2Fdownload%2F5%2F7%2F7%2F577a5684-8a83-43ae-9272-ff260a9c20e2%2FWindows%2520Native%2520Processor%2520Performance%2520Control.doc&amp;ei=d11lTL2bCoL-8AbmlPXbCA&amp;usg=AFQjCNHRjYQcalrjHPt8E4F5_ifnS4PmKA&amp;sig2=EzQnd5b6hQGt0ZcgmN5pDg" rel="nofollow noreferrer">From Windows Native Processor Performance Control(document link)</a>

<blockquote>
 Parameters to P-state policy
 Several parameters to Windows processor performance state controls are configurable via registry keys. These keys are provided with the intent that OEMs and system designers may tune the performance of Windows processor power management features to best suit specific platform designs, and allow adjustment to help achieve maximum battery life and realize the best system performance.
</blockquote>

And you have to restart to have the changes take effect.

blocks|key|4138270|text|Microsoft+Windows没有用于CPU超频/降频的API。你将不得不使用你的汇编技能来编写你自己的代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4138271|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Microsoft Windows does not have an API for overclocking / underclocking a CPU. You would have to roll your own using your assembler skills.

blocks|key|2730210|text|我所能做的就是为你指明正确的方向。我认为通过Windows+Management+Instrumentation+(WMI)你可以得到一个COM接口，允许修改一些子系统。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2730211|希望这些模糊的信息能让你走上正确的道路。:-)|2730212|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Windows_Management_Instrumentation^0|M|14|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

I can do no more than point you in the right direction. I think through <a href="http://en.wikipedia.org/wiki/Windows_Management_Instrumentation" rel="nofollow noreferrer">Windows Management Instrumentation (WMI)</a> you can get at a COM interface that allows modification of some sub-systems.

Hopefully that vague bit of information will set you on the right path. :-)

blocks|key|883717|text|您可以使用以下命令更改频率|type|unstyled|depth|inlineStyleRanges|entityRanges|data|883718|PowerWriteACValueIndex()/PowerWriteDCValueIndex()|code-block|syntax|javascript|883719|当为两者设置相同的索引值时|883720|GUID_PROCESSOR_THROTTLE_MAXIMUM+%7C+GUID_PROCESSOR_THROTTLE_MINIMUM|883721|所有GUID描述都可以在winnt.h中找到|883722|您不能通过WINAPI更改CPU电压。您应该使用特权命令通过系统内核驱动程序写入特定MSR(请参阅AMD/Intel文档)。由于Nehalem微体系结构，您根本无法更改英特尔CPU电压。英特尔官方不提供MSR来通过软件写入电压值(VID)。|883723|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

you can change frequency by using

<pre><code>PowerWriteACValueIndex()/PowerWriteDCValueIndex()
</code></pre>

when setting the same index value for both

<pre><code>GUID_PROCESSOR_THROTTLE_MAXIMUM | GUID_PROCESSOR_THROTTLE_MINIMUM
</code></pre>

all the GUID description could be found in winnt.h

you cannot change CPU voltage by WINAPI. you should use the privileged commands to write to specific MSRs (see AMD/Intel docs) via system kernel driver.
you cannot change Intel CPU voltage AT ALL since Nehalem micro-architecture. Intel officially does not supply MSRs to write voltage values (VIDs) by software.

I want to find the interface supplied by windows to change the CPU frequency and core voltage. 
Thanks!

What is the interface that change the cpu frequency and the core voltage on the windows platform?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想找windows提供的接口来改变CPU频率和内核电压。谢谢!

问windows平台上改变cpu频率和内核电压的接口是什么？
EN

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问windows平台上改变cpu频率和内核电压的接口是什么？EN