CPU speed stuck at 1.18Ghz

I have a Clevo W150ERQ with an i7-3630QM processor, 2.4Ghz. However suddenly the CPU is only reporting 1.18ghz max and operating at right around 50% on all cores.

I first noticed this when comparing computer speeds bewteen two laptops (a clevo and an asus) using Handbrake to recode a DVD. The clevo computer was significantly faster at rendering video and the benchmark tests I did showed the Clevo to be significantly faster.

However the latest benchmark I ran and Handbrake test showed the opposite; something has caused the clevo computer proessor to be stuck at 50% max. The idle temps stay around 56-60C and it never goes above 70.

I have no idea what changed. Anyone have any idea what could cause the CPU to suddenly go to half power?

 

Is it receiving power from the brick (check to see that it's "plugged in and charging")?

 

Yes, the computer is plugged in and charging, and on the high performance power plan.

 

Does it do the same when set to balanced?

 

Yes, it does. However, someone in another forum told me to run a program called Throttlestop, and when I ran that program the clock speed returned to normal. It's not a permanent fix as I have to run the program once every time I restart the computer to get the normal clock speed.

 

Try and trace back to some software or firmware change you made. If you can, take an image backup of your current install and see if a factory default install has the same issue.

 

This will help you rule out a software change if it continues to happen here, in which case it could be said firmware.

 

I ended up doing an image backup and resetting Windows 10 back to factory defaults. The CPU is now functioning properly and I have re-installed most of my programs. One thing I intentionally haven't done is gone crazy installing the latest and greatest drivers for all the hardware. I suspect that the CPU issue was caused by a driver, so I'll wait to update drivers until I need to. But so far all is good.

 

I'm glad it got it sorted, hopefully you can pin down the culprit now you are aware of the impact.

 

ER series has CPU Turbo disabled while dGPU is active, that's normal.
If you want to have CPU Turbo with GPU use the Mod BIOS (just click my signature).

 

If that were the cause @Prema it would have been the CPU locking down to 2.4ghz, this was going at half that.

 

Wow, that's a really good point, I didn't even catch that.

 

His system got stuck on the tables used for battery operation on top of that.
Probably because he played to much with throttle-stop etc...

But, Turbo was disabled entirely for all WxxxEx-Series models (or all non-P-series) once the dGPU switches on. I had to rewrite the entire SSDT tables on all those BIOS to re-enable it.

 

Fair enough, but I usually like to get something in a stock working shape before modding. Now he is clear to install the mod a and get even more than before for certain

 

Well, unfortunately the CPU is again stuck at 1.18Ghz again. After I restored windows the last time I did play around a little bit with Intel XTU and Nvidia Inspector, but decided not to overclock. The CPU ran normally for several days after uninstalling Intel XTU, Nvidia Inspector and Throttlestop. But the CPU is stuck again. I can't be sure, but I think the issue started again after trying various intel drivers due to a wifi card problem I'm having.

Based on the above info (Prema's post) is there any way to fix this without resorting to a full reset of Windows? I have already tried going back to a system restore point which failed. To be clear I have installed Prema's bios and the settings are all stock bios.

After this, I'm done messing with overclocking for good.

EDIT: Simply running Throttlestop once returns the CPU to normal speed. Even if I then close TS the CPU speed remains normal, but I have to start TS once each time I reboot.

 

OK now I'm really annoyed. The CPU is once again stuck at 1.18Ghz. I did a clean install of Windows 10 and I did NOT install any kind of throttling or overclocking software. What could possibly be causing this? I know from past experience that if I install Throttlestop and simply run it (even without changing anything, just running the program) then the CPU magically operates normally. But I really don't want to install Throttlestop at all. This is maddening.

 

Honestly, I'd say just install ThrottleStop. I always have ThrottleStop running on my laptops, works great for them.

 

My laptop processor's clock speed wasn't increasing form 1.18 GHz, I experienced this issue in my laptop, when I was using ** 65 Watts** of adapter on my DELL Inspiron 15R 5520 instead of ** 90 Watts**.
Processor limitations Occur when you haven't providing its required source of current, Increase wattage of your adapter or current supply source to get the extreme efficiency from you processor and your clock speed will work normally.
INSHA-ALLAH

 

Throttlestop all the way. You can set it to pretty much disappear once started and just pin it to the task bar to make it easy to start. Has fixed this issue on a number of systems. On this note I'll make a donation to the creator - I've clearly made good use of it so far.