Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Why does my core speed up at idle?

11 Mar 2013   #1
shutteringfocus

Windows 7 Pro 64bit
 
 
Can you help me determine if CPU-Z is giving me false readings?

I'm starting to do some overclocking with my core i5 750 and ASUS P7P557D Pro according to THIS TUTORIAL


So far I set the DDR3 frequency to 1600 and increased the BCLK frequency to 144MHz.


The weird thing is that when I run CPU-Z and watch it while running Prime95 to stress the system the core speed is faster when at idle. As soon as Prime95 starts, it slows down.

Here is the CPU-Z at stress:


Here is CPU-Z at idle:


I don't understand?

Shouldn't the core slow down at idle?


My System SpecsSystem Spec
11 Mar 2013   #2
shutteringfocus

Windows 7 Pro 64bit
 
 

Also, CoreTemp is giving me a different read.

Here it is at the same frequency running the Prim95 Test. CPU-Z displays as above, CoreTemp displays like this:



Am I using these programs incorrectly?
My System SpecsSystem Spec
16 Mar 2013   #3
logicearth

Windows 8.1 Pro (x64)
 
 

When stressing all cores on the CPU the turbo only goes so high on all four cores. However when you only have one core being utilized with any load it will go much faster. That is how Turbo Boost works.

And there is no such thing as idle. You may be idle but the computer rarely is.
My System SpecsSystem Spec
Reply

 Why does my core speed up at idle?




Thread Tools





Similar help and support threads
Thread Forum
Speed up the performance of windows 7 in acer core i3
there is a trick to speed up the performance of windows 7 in acer core i3? thank you very much http://amburadul101.tk/69/d.png
Performance & Maintenance
Looking for any advice for high CPU Core Speed
So I am coming here to see if anyone may have some insight to what I have been seeing on all my systems. Asus P6T Deluxe v2 with Core I7 920 DO Asus P7P55D Deluxe with Core I7 870 Asus P8P67 Pro (rev 3.0) with Core I5 2500k AsRock H77M with GM870 Here is what I found out. All my systems...
PC Custom Builds and Overclocking
How to keep a specific core idle (AMD Bulldozer)?
I have a program that I want to run on one core of a compute unit (say, core 5), while ensuring that its matching core (core 4) remains halted. That way the program gets full use of the compute unit's shared resources. Whichever core I disable in this way, I can pin my test program to its...
Performance & Maintenance
Core Speed and Multipler Question
I purchased a Dell 8500 XPS with i7 -3770 CPU. I have just run SIW CPU Info and obtained the following: Property Value FRANK-PC (Dell Inc. XPS 8500) Summary Number of Physical Processors 1 Number of Cores per Processor 4 Number of Logical Processors 8 CPU #1 Intel Core i3/i5/i7 CPU Name...
Hardware & Devices
core speed
I have core 2 duo T5550 but I checked in specy and it shows this..why is it?
Hardware & Devices
core 2 duo and quad idle temp heads up
Been stressing alot recently about the idle temps of my cpu (new pc case) (when load temps are spot on) after much research and much stress about what turns out to be nothing i found this IDF Taipei: Intel Releases DTS Specs For All Core 2 Processors Basically if your idle temps seem high or...
PC Custom Builds and Overclocking

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 19:09.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App