Clevo Bios older models (released in/after 2012)

Discussion in 'Sager and Clevo' started by Blacky, Dec 18, 2013.

  1. Blacky

    Blacky Notebook Prophet

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    I think there are some instances where you can't really downgrade from the BIOS. Not sure if this is one of those cases.
     
  2. nesvara

    nesvara Notebook Enthusiast

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    If it is true what you say and there is no possibility to downgrade at all - what else do you suggest to do in my situation?
     
  3. Blacky

    Blacky Notebook Prophet

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    Why do you need to downgrade in the first place?
     
  4. nesvara

    nesvara Notebook Enthusiast

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    because my new GPU NVIDIA 970M is not detected properly, and it is not possible to boot into the system (caps-lock and num-lock led are blinking, speaker is beeping, the system shuts down after 1 minute due to termal problem). With the prema Bios system booted normally, although it was not detected by bios too.

    Unfortunately as I wrote in the first post, I am not able to flash any other BIOS or EC (including prema) now.

    I have already tried the following (unsuccessfully):
    P150EM_BIOS05 - Eurocom original
    P150EM_EC05 - Eurocom original
    P150EM_EC08 - Eurocom original
    P150EM_Bios10 - Eurocom original
    P150EM_EC11 - Eurocom original
    P150EM_BIOS/EC14-clevo - Clevo original
    P150EM_BIOS/EC16 - Eurocom original
    P150EM_BIOS/EC16-clevo - Clevo original
    P150EM_BIOS/EC17 - Eurocom original
    Racer_2.0_X_BIOS/EC_2T_nvidia9xx_latest - Eurocom original
    P150EM_17_11_PM_v2 - Prema
    P150EM_B17 - from this website
    P150EM_EC11 - from this website
     
    Last edited: Nov 26, 2017
  5. Zix

    Zix Notebook Enthusiast

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    With the same win98 boot disk image? Have you tried FreeDOS?

    Beware that 1.00.xx and 1.02.xx EC/Bios can brick your system if installed together, don't try to downgrade the EC too.

    Try to make a new bootdisk (I used the latest version of Rufus with freeDOS in my P150EM) and flash prema mod v2, then if it works try flashing v3b.
     
  6. nesvara

    nesvara Notebook Enthusiast

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    Well, the latest version of Rufus with freeDOS + prema mod v2, I received following message: Not enough memory Available!
     

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  7. Zix

    Zix Notebook Enthusiast

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    The Afudos version in pm2 is probably the cause of this error, you can try to swap it with a newer one or make a pure msdos boot disk. :)
     
  8. nesvara

    nesvara Notebook Enthusiast

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    Ok, where can I find the latest Prema BIOS mod, his website is no longer available?
     
  9. Zix

    Zix Notebook Enthusiast

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    You just need a newer version of Afudos.exe, not the whole bios archive.
    But before doing that you should try to make a pure msdos disk, if you have a Win7 pc you can make one with Rufus (on win10 it only makes FreeDos bootdisks).
     
  10. Blacky

    Blacky Notebook Prophet

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    Try to PM Prema on this forum and see if he can help.

    So you believe that by installing Eurcom BIOS your system will detect the 970M ?
    So basically you want to install the Eurocom BIOS over your current bios.
     
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