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7 Posts

07-29-2019

FR

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YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-07-30, 9:28 AM

I have the same problem as the one mentioned in this topic:

https://forums.lenovo.com/t5/Lenovo-IdeaPad-1xx-3xx-5xx-7xx/Ideapad-530S-14ARR-CPU-underclocks-at-0-38-ghz-when-battery-is/m-p/4447376/highlight/true#M69961

 

I have the YOGA 530-14ARR with the AMD Ryzen 5 2500U processor and the latest bios up to date 8MCN52WW.

 

When the battery is below 21%, regardless of the power setting and if it is plugged in or not, the cpu constantly stays at 0.38 ghz, making the computer unusable. I have same problems on ubuntu 19.04

 

To solve this problem, you need to disconnect the charger from the laptop and connect again. It's annoying.

 

Where can I find the previous bios to try to downgrade the bios?
thank you

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1 Posts

08-12-2019

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-12, 16:16 PM

Hello, I have the same problem , also when i plug de AC the CPU is locked at 0,38gz... its annoying

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7 Posts

07-29-2019

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-14, 12:44 PM

I tried to modify and / or restore many parameters in windows power settings, bio update, test and check a lot of things, but I do not see any solution to fix this.

only unplugging and reconnecting the power cord above 21% restores processor frequencies

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1 Posts

08-15-2019

SK

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-15, 10:21 AM

Same problem here. I wrote on support and they recommend me to reinstall Windows but i don´t know if it helps.

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7 Posts

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-27, 21:09 PM

I used the lenovo utility from the support to create a windows restore USB key. I have completely reinstalled windows with this key, but the problem continues. I want to try to go back to the old version of the bios, but I can not find the link

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7713 Posts

01-13-2008

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-28, 0:39 AM

 wrote:

I used the lenovo utility from the support to create a windows restore USB key. I have completely reinstalled windows with this key, but the problem continues. I want to try to go back to the old version of the bios, but I can not find the link


There is at least one earlier BIOS version on the server - a couple of versions back.  You can find it and and the readme by manipulating the link to the currently listed version.

 

I'm very much hesitant to recommend such a thing - and you are very much at your own risk if you try it.

 

good luck,

Z.


The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.


The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog

 

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11 Posts

08-24-2019

IT

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-28, 7:59 AM
I have the dual boot with ubuntu, and, also with ubuntu do the same!
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11 Posts

08-24-2019

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  • Message 8 of 21

Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-28, 8:19 AM
What is the difference between 530s-14arr and 530-14arr?

because the 530s-14arr has the new 8PCN55WW bios
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2 Posts

08-12-2019

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Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-28, 18:59 PM

go to the download link of the latest bios that is the 52 version for the yoga arr 14 and change the link from 52 to 50 and u will download the previous bios

 

https://download.lenovo.com/consumer/mobiles/8mcn50ww.exe

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2 Posts

08-12-2019

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  • Message 10 of 21

Re: YOGA 530-14ARR CPU underclocks at 0.38 ghz when battery is bellow 21%

2019-08-28, 19:00 PM

different model different bios.530s vs 530

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