Suddenly not able to lower CPU multipliers after doing a windows update

This is for a Clevo P151SM1B.

Earlier today, everything was working fine. For years, I have had Intel XTU set my multipliers to 28x so it runs at a max of 2.8 ghz. I did a windows update, and one of the updates was a "Intel systems driver" : http://imgur.com/a/W7gpY.

After updating and restarting, intel XTU went back to default settings and would not load my old profile with the 28x multiplier. I was no longer able to lower my multipliers because the minimum multiplier had changed to 34x for 1 core AKA 3.4 ghz.

http://imgur.com/a/UDPR3

I could not find the "intel systems driver" anywhere under programs and features or "view installed updates". System restore only had 3 restore points, none of which was before the windows update (why?!).

After several hours of trouble shooting with Intel and Microsoft support reps via live chat, the response i got was :

Intel : The multipliers in XTU are controlled by your BIOS, if you cannot change it in your BIOS, then your BIOS might have been corrupted by windows update.

Microsoft : We can't find any windows update by that name. (I gave her the exact name as listed in the update history, but she said she couldn't find it).

I tried changing the multipliers in the BIOS, but I cannot decrease them below 34x for 1 core. I can increase them (and in XTU as well), but I cannot decrease them.

My normal core clock speed is 2.4 ghz but my laptop hits 3.4 ghz when the turbo boost kicks in, previously i had the multipliers decreased so that it would run at 2.8 ghz when the turbo boost kicked in, which was just fine for me.

Can anyone explain what is going on here? Is it even possible for windows update to corrupt my BIOS as the Intel rep suggested? That sounds very far fetched to me.

 

Anyone have any ideas?

 

I managed to figure out what the intel systems driver thing did.

http://borncity.com/win/2016/12/06/windows-optional-update-intel-system-6282016/

Any ideas on how to remove it? It is not in the list of installed updates or programs.

 

Do you have a Windows System Restore point prior to that update? If so, I'd just run System Restore and then not allow that updated to be installed in the future.

 

No i dont. For some reason windows did not save a system restore point before the update even though there was more than 500 mb of the allocated space free.

 

Do you know the KB number of that update?

If you do, you can uninstall it then use the Microsoft tool to hide updates in order to prevent it from being installed again

OR, you can try this

Download the Intel Chipset Software v10.1.1.33

To ensure proper installation of the Intel Chipset Drivers in case you were not installing them for the first time after a format, do the following:


1) Copy the setup directory file to the root of C:\ then launch command prompt as admin

2) then type cd\ to go back to the root of C:\ then type CD XXX where XXX is the name of the folder. I would rename it to something simple such as chip for easy access in DOS



Now the drivers will be installed completely because if you don't follow this method, then as soon as you run the setup regularly and hit next, you will notice that the installation completed and nothing happened.

 

There is no KB number as it is an optional intel driver update.

See : http://www.catalog.update.microsoft.com/Search.aspx?q=Intel – System – 6/28/2016

If you download it and open up the .INF, it shows that it is an intel XTU device driver, but there is no uninstall utility. Do you have any idea how to uninstall it?

Im not sure why you want me to install those intel chipset device drivers. How will that allow me to reduce my CPU multipliers like before?

 

The chipset drivers will interface with the CPU and provide the drivers for CPU power control etc.