CPU Stuck at .8 GHz, Please Help!

[FredyK200]

So I recently bought a Samsung Ativ book 9 Laptop on Ebay.

 

It works fine but I noticed that he laptop gets very hot. I downloaded intel extreme tuning utility to see if I could lower the voltage a bit and try to keep temps down.

While doing stress tests to see if the new voltage was stable, I noticed the CPU was only runnning at .80 GHz, I opened Task Manager to confirm and tas manager was reporting .77 GHz.

 

 

I would like for my computer to run at full performance and am wondering why the CPU is stuck at such a low clock.

 

 

You can also see that It says "0 Active Cores" When stress testing it stays a 2, but while openeing random chrome tabs and other apps it'll alternate between 0,1, and 2.

 

System Specs:

OS-Windows 10 Home

Processor- Intel Core i7-4500U @1.80GHz (2.40 GHz)

RAM- 8 GB DDR3

Video- Integrated Intel 4400 HD

SSD- 256 GB

[Sauron]

The new voltage is clearly not stable. The cpu needs a certain voltage to power itself, the fact that it will still run doesn't mean it's not limiting itself to do what it can with the resources it has.  I wouldn't tamper with voltages on a thin and light laptop if I were you, it's one of the best ways to break them.

[jeffmeyer5295]

I agree with @Sauron, put everything back the way it was, if it's an older laptop MAYBE attempt to re-apply thermal paste if you're up to it. 

[Majestic]

I doubt the motherboard allows you to tinker with this...

[Phate.exe]

Open it up, clean the crap out of the heatsinks, put it back together with the best thermal paste you can find, and make sure everything is set to default/high performance settings.

[FredyK200]

4 hours ago, Sauron said:

The new voltage is clearly not stable. The cpu needs a certain voltage to power itself, the fact that it will still run doesn't mean it's not limiting itself to do what it can with the resources it has.  I wouldn't tamper with voltages on a thin and light laptop if I were you, it's one of the best ways to break them.

I reset everything back to normal and reset the laptop. I am still only getting a solid .8 GHz

[AlleRacing]

It could be an error in the way your CPU speed is being reported. Windows was detecting my CPU at 0.8 GHz, but my motherboard utility was detecting it at 4.4 GHz.

[alexjevans07]

Have you set the windows power plan to high performance, as having it on battery saving can limit the processor clock speed

[Sauron]

2 minutes ago, FredyK200 said:

I reset everything back to normal and reset the laptop. I am still only getting a solid .8 GHz

Runs some benchmarks and check the results, maybe the sensor got damaged.

[Adimo]

It could be because your fan is broken and doesn't speed up, wihch means the laptop is cooled passively, so the processor is throtteling at 0.8GHz to protect itself from melting.

Have you checked if the fan spins up ?

[FredyK200]

I have solved the problem.

Samsung has there own Settings on top of the windows settings and one of them Is "Quiet Mode" Which makes the fans not spin as fast, thus making the laptop quieter.

And Samsung must of capped the CPU speed to .8 GHz to prevent overheating when this mode is enabled.

Setting this mode to OFF solved all my problems.

 

Thank you guys for all your help, I learned a lot and know what to do/check next time something like this happens!