Jump to content

Lenovo y50-70 CPU stuck at 2.0 GHz


ketis

Recommended Posts

Hello everyone.

 

I made this thread because I have problem with my laptop. It's Lenovo y50-70 with i5-4210h and 960m.

 

Laptop randomly starts with CPU stuck at 2.0 GHz and nothing can boost it up, even stress tests in ThrottleStop or Intel Extreme Tuning Utility. The only one thing which helps is restart of laptop. Then laptop will start normally with CPU at 3.4-3.5 GHz.

 

But one thing I discerned is that when CPU is working on 3.4 GHz and I unplug power supply and laptop will work only on battery the frequency will drop to 2.0 and never comes back. After that I need to restart laptop. 

 

I did few things to repair it:

1. Flashed original stock bios from Lenovo website. Version 3.03.

2. Cleaned from dust.

3. Used new thermal paste on CPU.

4. Made default settings in bios.

Nothing from above helped.
I attached two screenshots from IETU on 2.0 and 3.4 GHz.

I hope that somebody have an idea what could wrong that laptop randomly starts with slowed down CPU.

2.0.jpg

3.49.jpg

Edited by ketis
Link to comment
Share on other sites

17 minutes ago, runix18 said:

try putting your laptop in high performance mode from power settings. see if it helps.

It's all the time at high performance. 

And just discovered that ThrottleStop can unlocked the CPU from stuck 2.0 GHz. So for now it's the only one solution. 

Link to comment
Share on other sites

  • 1 month later...
  • 4 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.