CPU Speed too low! Stucks on 1200MHz - Core i7 3610QM

[bahmanp]

I have an Asus K45VM laptop, exploits a Core i7 cpu, which core speed must be between 2.3 - 3.3 GHz. But CPU-Z and Core Temp are showing the speed at 1200MHz. I have set the Power Plan to High Performance and Minimum and Maximum power states both to 100% on both battery and plugged in cases. I have updated the BIOS version to last, but it could not make a change. It doesn't matter the laptop to be idle or under a high load, the multilier remains on 12x and core speed on 1200 MHz. I have read lots of forums, but no one could solve my problem. I have to note that there is no option in BIOS menu for enabling or disabling EIST or turbo boost of CPU.

High graphics games do not have any problem because GeForce GT 630M works properly for them. But when it goes to regular use and CPU bound applications like Matlab, it is really hard to work with such a dump situation. I am wondering if anyone could help me with this problem.

 

[bahmanp]

I found my answer at last! Hope it to be useful for others.

Actually, the problem is about a double check for heating the CPU, named "bi-directional prochot". It is not managed to work fine and is too conservative. disabling this feature will causes no problem at all, because the default prochot is still running and prevent CPU to overheat.

To solve the problem you have to disable it. This will require a BIOS fix, but until then, I will bring adequate information on how to do this best, from an external website. But before proceed to the next step, first you must download and install ThrottleStop application from the link below:
http://www.softpedia.com/get/System/Benchmarks/ThrottleStop.shtml

What you want to do is to untick BD PROCHOT on the main screen and then Save it. It only needs to be configured once every boot-up, until a BIOS update exists. So throw a shortcut of TS into your StartUp folder. Also config it from Options to Start Minimized if you are going to have it start at Windows boot. To prevent seeing the application on every boot, go into the Throttlestop CFG file (ThrottleStop.ini) and add the line "ExitTime=1", so on startup it loads the program and closes it immediately.

You may take a look here for more discussion:
http://rog.asus.com/forum/archive/index.php/t-3322.html

 

[bahmanp]

Well, seems there is no way to mark my own solution as best 😀 But you may consider it as solved!