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jmambu
Beginner
348 Views

CPU drops to 1.80GHz even just browsing and do typing

Hi there, this laptop has been good for the past year. One day I noticed something's strange with the performance.
It seems the CPU speed drops to 1.80 and stuck there when I do multitaskings light things let alone playing games.

Any idea how to fix it? Thanks!

 

I have attached IPDT, SSU, XTU screenshot, benchmark and a video of XTU (plugged in and not plugged in) and some other things incase needed

XTU video also can be accessed here: https://ttprivatenew.s3.amazonaws.com/pulse/jyym27/attachments/14233112/TinyTake29-07-2020-01-20-54....

spec:
Lenovo Yoga 520-14IKB 

Display : 14" FHD (1920 x 1080) IPS touchscreen
Processor : Intel® Core™ i7-8550U
Memory : 8 GB Dual Channel ( 4 GB On Board )
Hard Drive : 1 TB + 128GB
Graphics :NVIDIA GeForce MX130 (2GB GDDR5)
Operating System : Windows 10 Home

0 Kudos
3 Replies
AlHill
Super User
325 Views

You have a U processor.  XTU only supports X and K processors.

You should uninstall XTU and reset the bios to defaults.

And, if you are undervolting, that is a bad thing:

https://securityboulevard.com/2019/12/plundervolt-a-new-intel-processor-undervolting-vulnerability/

 

Doc

 

jmambu
Beginner
311 Views

Hi,
Thanks for the response. I might don't know what I did that cause it to undervolting. (Or maybe someone else have change the configuration). How can make it to not undervolting?

Also, how to reset the BIOS to default?

AlHill
Super User
305 Views

Contact your system manufacturer for information on how to reset their bios.

Doc

 

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