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soltanloo
Joined: 05 Mar 2006
Posts: 2
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 14 Aug 2008 20:43 changing the frequency of CPU by EIST |
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hi
i want to write a program that change the frequency of processor. i have a desktop computer with pentium 4 3.2GHz processor. i know EIST (Enhanced Intel Speed Step technology), but i don't know how must change the frequency of CPU .
i want to increase and decrease the frequency by step for example 200MHz . what registers i must initialize ? how can i access to datasheet of my CPU? i searched in intel site but i couldn't find detail about using EIST.
can anyone help me ?
best regards
soltanloo
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mezo
Joined: 16 Jul 2007
Posts: 60
Helped: 2
Location: Egypt
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| 17 Aug 2008 14:20 Re: changing the frequency of CPU by EIST |
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i don't think you can change the processor speed on pentium 4
you can do this if your pc supports the overcloacking property . which is not present
in your cpu , it only exists in the Black Edition processors like :
AMD Phenom Quad core 9850 & 9950 . but you must be careful when you do this
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soltanloo
Joined: 05 Mar 2006
Posts: 2
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| 17 Aug 2008 15:51 Re: changing the frequency of CPU by EIST |
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hi
thank u mezo
but i change it by a software named RightMark CPU Clock Utility . it altered frequency from 3.2GHz to 2.4GHz . it means that my cpu have 2 step only . i must choose another cpu. but i want to learn changing frequency by software any time i need.
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