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46 Posts

09-07-2020

France

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Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-18, 11:18 AM

Hi,

I have bought a LENOVO IDEAPAD 5 with Ryzen processor 3 month ago. Since I bought it I have big Throttling during my game sessions. 

Every 5 minutes mu CPU fréquences drop to 400mhz and my FPS drop to 7 or 9 during maybe 20 sec and it's back to normal. it lasts maby 20 second every 5 minutes.

This issue is known on IDEAPD 5 or Flex. 

Lenovo please do something!!!

I tried in medium performance, I tried in high performance, I tried in intelligent cooling system...

I already installed the last drivers and last bios from LENOVO website

You can see here others peoples with the same issue on IDEAPAD 

https://www.reddit.com/r/AMDLaptops/comments/ia1pug/4500u_is_great_but_i_have_throttling_issues/

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46 Posts

09-07-2020

France

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Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-20, 17:55 PM

After hours and hours of research after a non conclusive warrantly return (They just made a reset to windows), I finaly found the issue:

I made a stress test to the CPU and I checked the TDP used and it goes to 36.9W!!! 

On the AMD website, we can see that the Ryzen 5 4500U should be between 10 and max 25W!

I wrote an e-mail to LENOVO because it is not acceptable, it is very bad for the CPU!

 

I don't want a solution or just an update, I want that they refound me my money because my CPU already used for 4 month with this bad TDP, it wears out prematurly the  components and the mistake come from the design. And I don't want a trade with a new one because I no longer trust this maker. I already lost all my data with the first warrantly return.

 

I saw on many many forum that a lot of peaple have this issue of throttling on LEnovo laptops with ryzen processor 4500U 4700U 4800U 2500U...

 

See below the TDP, that is why the CPU frequences drop down every 5 or 10 minutes and that is why it is very hot, I ran this test only for 10 or 20 seconde  

 

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14 Posts

12-22-2020

Serbia

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Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-22, 17:31 PM

Wow this is unacceptable. I have Ideapad 5 14 with Ryzen 5 4500U and I am experiencing the same issue. I hope this could be fixed with some driver update otherwise I will return the laptop. It's such a shame because 4000 series score impressive results for their category

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21 Posts

12-14-2020

United States of America

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Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-23, 1:34 AM

This is ridiculous. My unit has passed its return window, Lenovo really needs to address this issue ASAP.

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4 Posts

10-23-2020

Germany

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  • Message 5 of 63

Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-26, 0:25 AM

I have an ideapad 05 ARE 14 4700U and have the same issue since day one.. didnt find anything about the problem online. And then had no time to figure it out til today. Every few minutes core clock down to 399Mhz while gaming.

The CPU is only throttling while network operation. In battery mode its working well.

 

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46 Posts

09-07-2020

France

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Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-28, 11:49 AM

yes the same duraing games the frequences drop down to 400mhz every 5 minuts.

Nobody from LENOVO to give answer to their customers?

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21 Posts

12-14-2020

United States of America

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Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-28, 19:07 PM
I too have the same model with Ryzen 7 4700U for the IdeaPad 5 14, its really annoying and Lenovo really need to fix this!
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46 Posts

09-07-2020

France

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  • Message 8 of 63

Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-28, 21:06 PM

CPU throttling can arrive but I have never seen a drop down to 400mhz, It should fall down mabe arround 2.5 or 3ghz. I think that It shows that there is a cooling issue in design or power supply of processor issue.  Anyway, as said previously, AMD wrote in their website that the TDP should be at 25w max and in our computer we can see that LENOVO doesn't respect this. Tomorrow I will send a registred mail to LENOVO and to the supplier that sold me the computer with all those explications. Too bad because we have bought a very efficient processor for notebook and we can not exploit its performances. 

 

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46 Posts

09-07-2020

France

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  • Message 9 of 63

Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-29, 13:42 PM

I almost solve throttling issue, I make a tuto for you and you could tell here if it resolve your problems I am whith Ryzen 5 4500U with TDP that should be between 20 and 25w: (If you are on other Ryzen, check on AMD website the min/max TDP for yours in support tab

 

1/ download : Ryzen controller here : https://www.ryzencontroller.com/#downloads

 

2/ download cpuz and core temp. You will find those program easily on google. All is free.

 

3/ When the computer is pluged check if your computer is in max performance. Sorry I can not do a capture for this : Click on the windows battry symbole at the right bottom and put cursor at max performances. And in lenovo vantage put the performance on intelligent cooling

 

3/ open cpuz and core temp and clisk on bench tab and clcik on stress CPU (just for 10s then stop to avoid high temp even if there are securities) and during the stree test, look the power as shown below. It should be around 32-37W. That is why we have throttling.

 

4/ Open Ryzen controller and put the same setting than me CPU TDP :

 

CPU tab

 

-CPU TDP : 20w (In English it's mabe called stapm stapm)

-Boost time : 700

-Boost TDP 20w (You can try with 25, if you don't have throttling you would have better performances but I still have a few throttling with 25w so i prefer 20w

 

 

Power tab :

 

- VRM Current : Between 30 and 35A

 

 

- Then click on apply : If you have a red message click again, sometimes it doesn't wotk first time. The message should be green when you apply.

- Then click on create preset and choose a name (for exemple "no throttling")

 

 

Preset tab:

 

-Choose Your parameter name in each boxes

 

 

Settings tab:

 

- Check the 3 boxes

- Reapply periodicaly : 180s (This is because sometimes bios takes back over RyzeController.)

 

 

5/ Open, same things than first step with CPUZ and core temp and check the power should be at this time 20w or 25 if you chose 25w on step 4.

 

 

Ok now star the same things that caused Throttling and check if it is better.

Please tell me if it is better. :-)

I would like to say that all those things are from your own responsability, if you make some damage, but if you do exactly the same things than me, it is more restrictive than default settings so the temp would be lower.

 

For me it is the better settings between performance and throttling.

And for I would ask that LENOVO refound my money because before I find this solution, My computer ran with their bad setting that damage prematurely the processor and it is not to me to resolve their issues.

 

And one more time sorry for my bad English, it is known that frenches are not good in languages hahaha

 

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21 Posts

12-14-2020

United States of America

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  • Message 10 of 63

Re:Lenovo IDEAPAD 5 Ryzen 5 4500U CPU Throttling!!!

2020-12-29, 14:53 PM
Wow, thank you so much for this man, I will try this ASAP, and you can contact Lenovo services to replace your motherboard which includes the CPU. Thank you again!
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