Solved CPU speed question

[realflow100]

How would I slow a processor down to "Half" it's original speed? Do I divide the frequency in half? or is there some other more complicated matter involved? this applies to multi-core or single core.

 

[Dude]

You would access your BIOS, if it allows you to you can change the speed. Most branded computers do not allow much. Here is an example how it looks on my bios

 

[Layback Bear]

I have a silly question.
Why would one want to do such a thing.

How would I slow a processor down to "Half" it's original speed

 

[Dude]

Good question, I guess to save power maybe.

 

[logicearth]

Intel SpeedStep, built into Windows power management. Just adjust the Max Processor Fregrency from there. However, it does not guarantee the processor will be cut in off, but will try.

Screen shot from a quick search:
What Is Minimum And Maximum Processor State In Windows 7 Power Management? - Super User


I personally set the minimum to 1% on my system to get to the lowest available.

 

[AddRAM]

Here we are busting our humps to push it passed 5 GHz and someone wants to cut their cpu in half

 

[logicearth]

Here we are busting our humps to push it passed 5 GHz and someone wants to cut their cpu in half

Cause, it does not need to stay at 5ghz while I browse the intertubes.

 

[Dude]

Here we are busting our humps to push it passed 5 GHz and someone wants to cut their cpu in half

Cause, it does not need to stay at 5ghz while I browse the intertubes.

No it needs to boost past 6



I use speed step. This is a real ss I got, although I could never validate at that speed. Just a weird spike

 

[AddRAM]

Now that`s the spirit

I Love the smell of CPU in the morning.

 

[realflow100]

jeeze that bios is like a full blown OS! Mine is more like a bios from 2004 Can't even touch the CPU speed other than enabling and disabling intel speedstep

using min and max CPU power in control paenl on the power saver power plan does seem to alter the clock speed though. lowest i got was 1333mhz or so at 0% min and 0% max i can also set a low performance balanced and high performance checkbox on my GPU

and when i disable idle states (enabling hidden power plan option via registry)
my CPU always locks at it's highest turbo frequency. 2.415Ghz which is amazing and makes everything much more snappy and doesn't change the temperature by a single degree

but i still dont know how to cut my CPU speed exactly in "half" (testing)

 

[Dude]

Maybe using XTU, you could.

https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&keyword=xtu

 

[realflow100]

it tries to install but says my platform is not supported at end of installation. (I have an OEM board so no intel overclocking tool will install) unless the XTU.msi is modified using Orca msi modifier tool but that will be pointless because the program itself would fail to run properly on an unsupported board

guess my CPU is not supported by any overclocking or under-clocking tool that exists.

only way would be to manufacture the same CPU at higher or lower clock speed through modified circuitry

then desolder old CPU and resolder new CPU on which nobody is going to bother with.

I have been 100% assured my processor is very stable. Ran GPU RAM and CPU tests simultaneously at 100% load for 24 hours and temperature never rose above 49-50*C for CPU or GPU.

played games like crysis 3 and metro last light and there has been no issues with stability what-so-ever.
ram is 100% stable as far as i know.

 

[logicearth]

Except your processor does support over/under-clocking tools. Intel SpeedStep and Turbo boost are already active on your system. You can use the built-in tools in Windows to control SpeedStep.

But if you want more control you need to pay for that.

 

[AddRAM]

Did you try setting it to min 50% and max 50% in the power plan ?

 

[realflow100]

yeah but that's not exactly half my CPU speed. i divided 2.41Ghz by 2 and i get less than 0% and 0% less than 1333mhz about 1207mhz or so. so 0% and 0% dont make my CPU go to 0mhz. rather to the lowest stepping it supports... it seems no software was made for this CPU/board so nothing can over/underclock it because no one's designed a program that can detect it correctly.. i dont have money for expensive professional overclocking utilities.

 

[essenbe]

You still haven't told us why in the world you would want to do that. Plus, if your system specs are right, you have an Acer computer which means you have a locked BIOS and none of the options you need are available to you. With your computer it can't be done.

 

[realflow100]

i just wanted to see if it would match the speed of another computer i have for an experiment. nothing fancy. but it seems i cant even lower the clock enough for it to be half as fast.

 

[realflow100]

I have enabled the option in power plan through registry (Enable Throttle States) which made my CPU use a bare minimum 0.1 watts on idle! Wow!! Less than the power of stereo desktop speakers on standby!! I can finally match almost exactly any CPU that's lower than mine! (GPU still wont match though.. only has power saver balanced and high performance option)
going to do some testing and experiments with CPU usage and determine intricate bottlenecks with some software.