8750H high power usage on idle

SM_SMoos
SM_SMoos Member Posts: 7 New User
edited November 2023 in 2020 Archives
Hi,
I have a Predator Triton 500 with an 8750H inside. The problem is that i get abnormally short battery life, like 2.5 hours browsing the web and less than 3 hours even if the system is totally idle. That's dissapointing for an 82 WHr battery.
I use Throttlestop for CPU undervolt and other tweaks and Throttlestop always reports at least 12W CPU power usage. It's also worth noting that the fans always spin which is not supposed to happen in this model.
Is 12W actually the idle power for 8750H? In that case no laptop with this CPU would run for over 4 hours unplugged even while doing nothing!
Is there a fix for that?

Answers

  • SM_SMoos
    SM_SMoos Member Posts: 7 New User
    Update:
    Intel iGPU driver uninstalled: problem solved (<5w TDP on idle)
    nVidia Driver uninstalled: problem solved
    Booted in Ubuntu: problem solved
    Back in windows 10 with both drivers installed: problem is back

    I have already updated both my main BIOS and RTX 2060 BIOS but have no idea if the problem occured just after that or sometime later.
    Is there a way to downgrade my graphics BIOS?
  • Karp-Acer_Retired
    Karp-Acer_Retired Member Posts: 2,599 Guru

    Acer suggest to to use the latest BIOS version. You are free to upload a different version, but Acer does not give support to that.
    Have you tried the battery saver feature to try to make the battery last longer?

    Click on the link bellow to access the video and steps for improving battery life.


    minimizar para MAXIMIZAR.

    Descubra a mais recente e inovadora tecnologia que chegará no mercado, next@acer.
  • SM_SMoos
    SM_SMoos Member Posts: 7 New User
    Acer-Karp said:

    Acer suggest to to use the latest BIOS version. You are free to upload a different version, but Acer does not give support to that.
    Have you tried the battery saver feature to try to make the battery last longer?

    Click on the link bellow to access the video and steps for improving battery life.


    Thanks for the answer
    I have installed the official firmwares from Acer support site. No custom/modded/unlocked BIOS
    Yes I tried battery saver but it doesn't make any difference.
    Guess I have to reinstall windows