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i have acer nitro 5 ryzen 5 2500u, my cpu doesnt go beyond 1.6ghz while on battery need help?

ayushn212ayushn212 Posts: 16Member Troubleshooter
acer nitro 5 AN515 42
ryzen 2500u cpu ( 2ghz base clock and 3.6ghz boost clock) with rx560x graphics
 
the problem is while on battery cpu doesnt go beyond 1.6ghz ( even under high performance settings)

but when i plug in adapter it can go upto 3.6 ghz or 3ghz on single and multi core, i checked on hardware monitor while running cinnebench r15

i want to know if its normal or my cpu should be hitting 3 ghz while on battery or there is aproblem with cpu/motherboard ?

Best Answer

  • gshawgshaw Posts: 11

    Tinkerer

    Accepted Answer
    ayushn212 said:
    its depends on amd as ryzen mobile processor is fairly new and all we can do is wait but i think they shouldnot make the same mistake with 3rd gen ryzen mobile cpu's
    As I have written earlier on this thread, it's not a bug, it is a feature, as confirmed by Acer support. I have an Acer Aspire A515-41 with A12-9720P and an Acer Nitro 5 AN515-42 with Ryzen 5 2500U, both with exactly the same issue. It is hard locked from the manufacturer for increased battery life, and nothing will change it. It is a common issue on all Acer laptops with AMD CPUs.
    As far as performance it concerned, the reduced frequency does not really matter for daily usage. Of course, it affects heavy usage scenarios like gaming. However, the kind of slowness mentioned by some users should be attributed to the mechanical HDD rather than the CPU. Add an SSD, and ideally upgrage the RAM to dual channel 16GB, and then notice the change in performance!
     
«134

FAQ & Answers

  • Hi,
    Download and run Realtemp free program, click settings and check whether the box for Disable turbo is ticked, if so untick it and check whether it helps.
    https://www.techpowerup.com/realtemp/

  • ayushn212ayushn212 Posts: 16Member Troubleshooter
    Hi,
    Download and run Realtemp free program, click settings and check whether the box for Disable turbo is ticked, if so untick it and check whether it helps.
    https://www.techpowerup.com/realtemp/

    the real temp only supports intel processor but my nitro 5 has ryzen 5 2500u
  • Hi @ayushn212 ;
    I'm sorry, I have completely forgot about it, I think they have disabled Turbo boost to preserve the battery life while in Battery mode, you can not also do much in BIOS settings as most of the laptops don't have Advanced settings enabled. I have run out of ideas but please wait for someone else to chime in.
  • First make a backup of regedit:

    Then check if this file helps you: http://www.geeks3d.com/dl/get/10060
    Then go into the power options and put into aggressive mode on both the battery and the power:

    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
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  • ayushn212ayushn212 Posts: 16Member Troubleshooter
    i tried that, power options settings doesnt help. cpu has no problem boosting while plug in maybe now i am thinking cpu being at 1.6 ghz on battery is firmware or bios problem.
  • What version of bios is installed on your notebook?
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
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      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • MaxGamerMaxGamer Posts: 110Member Skilled Fixer
    Hi,
    I have read about similar issues faced by you before on other forums. Ryzen CPUs have some sort of bug known as multiplier bug or multibug where they tend to get stuck at a low frequency on battery. People have fixed this issue by updating the BIOS but Acer has not released a BIOS update, and some have replaced their mobo to fix it. Can you please answer these questions.
    1.  From when did you start facing this issue?
    2. Did you try to overclock or undervolt your CPU?
    Don't forget to accept my answer if I was able to help you out!
    Just a tech enthusiast who tries to help other people : )

    Acer Nitro AN515-52-593F ||Intel Core i5-8300H upto 4.00 GHz/GTX1050/8GB 2666 MHz DDR4 RAM/1TB 7200RPM HGST HDD+16B Intel Optane Memory||

    Acer Support: https://support.acer.com/
  • ayushn212ayushn212 Posts: 16Member Troubleshooter
    i just bought acer nitro 5 an515 42 3 day ago and i faced this problem right from start, laptop comes with all the latest drivers and bios 1.08 as available on acer website.
    also i didnot overclock and undervolted the cpu as of now
  • OK! Go into power options and select the High Performance option! Then go on to change advanced power settings and in all options, put the same setting as being in power, especially in the processor power management option!

    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • ayushn212ayushn212 Posts: 16Member Troubleshooter
    OK! Go into power options and select the High Performance option! Then go on to change advanced power settings and in all options, put the same setting as being in power, especially in the processor power management option!

    yes i have tried that in advanced power options the thing is there is no effect of power saver mode and high performance mode on the cpu speed. and the only time the cpu gets boost speed is when i plug in the adapter as soon as i plug in i can see in the task manager that cpu is reaching upto 3 ghz. otherwise it is maxed out at 1.6ghz in battery.
  • MaxGamer said:
    Hi,
    I have read about similar issues faced by you before on other forums. Ryzen CPUs have some sort of bug known as multiplier bug or multibug where they tend to get stuck at a low frequency on battery. People have fixed this issue by updating the BIOS but Acer has not released a BIOS update, and some have replaced their mobo to fix it. Can you please answer these questions.
    1.  From when did you start facing this issue?
    2. Did you try to overclock or undervolt your CPU?
    I think colleague @MaxGamer is correct! I would not worry about this problem for now, as it is possible that several bios updates are still released, because your model is still fresh!
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • egydiocoelhoegydiocoelho Posts: 20,462ACE Trailblazer
    edited October 2018
    Your notebook also has the same problem of processor clocked in 1.6ghz on the battery as that of colleague @ayusnh212?
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • anoxssjanoxssj Posts: 10Member

    Tinkerer

    edited October 2018
    my processor works fine I guess. It goes up to around 3.3 GHz while running the game.

  • What I want to know is if the model of your notebook is the same as the colleague @ayusnh212? Can you tell the exact model of your notebook? Example v3-571! The notebook of the colleague @ayusnh212, when connected only on the battery, the clock of the processor gets locked in 1.6ghz and I wonder if that same problem occurs in yours too! Can you tell the version of your bios?
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • anoxssjanoxssj Posts: 10Member

    Tinkerer

    The model of my notebook is AN515-42 and bios version is 1.08.
    I also noticed now that my cpu is getting locked at 1.6 GHz on battery!
  • What is the version of windows 10 installed? 1803 or 1809? 
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • anoxssjanoxssj Posts: 10Member

    Tinkerer

    It's running version 1709
  • I recommend you guys to have Acer launch a new bios update!
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
  • anoxssjanoxssj Posts: 10Member

    Tinkerer

    Will updating the system solve the problem considering that FIFA 19 is new and my system ran FIFA 18 at ultra in 1080p?
  • I'm not sure if a windows update will solve the problem! You can try to update windows, but rather back up your files and turn on system protection! Make an image of the system with the acer care center!
    However I think this will be solved with a bios update!
    Oi! Eu não sou sou a cortana! Mas estou aqui para ajudar! Hi! I'm not the cortana! But I'm here to help!
    Se você gostou da minha resposta, marque como solução clicando em promover! If you liked my answer, mark it as a solution by clicking on Promote!
    Aceite somente a resposta que ajudou a solucionar o seu problema! Please accept only the response that helped to solve your problem!
    Detection tool click here to find the serial number or partnumber of your model!                                                          

               
      egydiocoelho Trailblazer
     
    ProductKey clique aqui para descobrir o serial do windows! click here to discover the windows serial!
    Para usuários da comunidade inglesa, espanhola, francesa e alemã, usarei o google tradutor! :)
    For users of the English, Spanish, French and German community, I will be using google translator! :) 
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