High CPU usage after bios update (UX434FLC)

Mesut7oMesut7o Level 1
edited September 2020 in ZenBook
  1. System: Windows 10 Pro
  2. Battery or AC: Both
  3. Model: UX434FLC-AI219T
  4. Frequency of occurrence: Every start up
  5. Reset OS:
  6. Screenshot or video:


Detailed description:

I updated my bios from 303 to 305. After this my CPU usage goes crazy with every start up. after a minute or so, it goes to normal values. I Rollbacked the bios update to 303 but still same issue. Updated back to 305 and it is still the same.

I hadn't this problem before the bios update. My laptop is 2 days old.


  • edited May 2020

    Hi @Mesut7o May I know what app you're running to cause the issue? Can you tell us more detail about how it goes crazy during start up? Please provide us screenshot or video while it happens so we can troubleshoot problem. Thanks!

  • I want first see the screen shot of this problem and can you tell me clearly

  • Mesut7oMesut7o Level 1
    edited May 2020

    my bad. i tought i added the screenshots. @vamsikrishnawwqq2 @AnthonyLee_ASUS

    i got 3 screenshots with different timestamps but the idea is the same. Screenshots are taken after the start up. first 10 to 20 seconds the usage is high. After that, it will go to normal usage around 788-800mhz for each core.

    It seems that the fan starts spins higher when i enter BIOS. i'm not sure if this is normal or not.

  • edited May 2020

    Hi @Mesut7o You can make sure your windows update is completed by going to settings -> update & securities -> check for updates. Since so far it happens on the first 10-20, we didn't see any abnormalities for now. You can send feedback to us again if the frequencies are getting higher. Thanks!

  • Mesut7oMesut7o Level 1

    Hi @AnthonyLee_ASUS ,

    My windows has the latest updates. It shows me that i have the recent updates. What do you mean by ''so far it happens on the first 10-20''

    Do you mean the boot ups? This issue happens every start up. but the funny part is, this happened AFTER the bios update from 303 to 305.

    I installed anti malwarebytes. Maybe if i delete that and reboot, the cpu wont go high in the beginning. im going to test that later in the day since i'm at work now.

This discussion has been closed.