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    How to backup VBIOS before attempting flash of Prema mod?

    Discussion in 'Gaming (Software and Graphics Cards)' started by Cakefish, Jul 5, 2016.

  1. Cakefish

    Cakefish ¯\_(?)_/¯

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    I'm trying to flash Prema's 980M VBIOS for my Clevo P651SG but am encountering this error message when trying to create a backup of my stock VBIOS using GPU-Z. Anyone know how to solve this?

    [​IMG]
     
    Cakefish, Jul 5, 2016
    #1
  2. bloodhawk

    bloodhawk Derailer of threads.

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    I think there is a way to save it using NVFLASH. Something on the lines of "-save filename.rom".

    Im not too sure, so please double check this.
     
    bloodhawk, Jul 5, 2016
    #2
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  3. TomJGX

    TomJGX I HATE BGA!

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    indeed, you have to use NVFLASH to save the vBIOS...
     
    TomJGX, Jul 5, 2016
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  4. Cakefish

    Cakefish ¯\_(?)_/¯

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    OK cool thanks everyone. I remember doing it by GPU-Z last time around, I guess NVIDIA has blocked that via drivers or something like that.

    I'll try NVFLASH. Thanks again :)
     
    Cakefish, Jul 6, 2016
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  5. Cakefish

    Cakefish ¯\_(?)_/¯

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    Another quick question if I may. Whether I keep the GPU enabled or disabled in device manager I'm getting the following error message:

    [​IMG]
     
    Cakefish, Jul 7, 2016
    #5
  6. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    I believe that you need to do the flash in a DOS, not a Windows environment.
     
    Ionising_Radiation, Jul 7, 2016
    #6
  7. bloodhawk

    bloodhawk Derailer of threads.

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    You might need to disable your graphics card from the device manager.
     
    bloodhawk, Jul 7, 2016
    #7
  8. 0lok

    0lok Notebook Deity

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    just curious.. what will you gain from using prema's gpu vbios? will it increase clock speed? or you will now be able to over clock gpu? Thanks..
     
    0lok, Jul 12, 2016
    #8
  9. TomJGX

    TomJGX I HATE BGA!

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    Prevents GPU throttling under normal load and of course and unlocked OC capability...
     
    TomJGX, Jul 13, 2016
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  10. 0lok

    0lok Notebook Deity

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    ahhh ok.. thanks alot.. errr would it void warranty of your laptop if you use it?
     
    0lok, Jul 13, 2016
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  11. i_pk_pjers_i

    i_pk_pjers_i Even the ppl who never frown eventually break down

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    Depends on the reseller/company you got it from. The Clevo Reseller I got it from (Eurocom) does not care about modded vBIOSes and BIOSes since they are an official Prema Partner Shop.
     
    i_pk_pjers_i, Jul 13, 2016
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  12. 0lok

    0lok Notebook Deity

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    so from alienware i guess it will void the warranty then.. thanks alot for the replies..
     
    0lok, Jul 14, 2016
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  13. bloodhawk

    bloodhawk Derailer of threads.

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    If you give the system back with that vBIOS flashed ,then yes. Otherwise you can get away with it.
     
    bloodhawk, Jul 14, 2016
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  14. 0lok

    0lok Notebook Deity

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    thanks alot for the info again..
     
    0lok, Jul 14, 2016
    #14
  15. D2 Ultima

    D2 Ultima Livestreaming Master

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    Mythlogic doesn't mind, and I believe neither does Sager. I actually up-front told Myth I was going to use svl7's vBIOS because I was getting artifacting at 120Hz and they said "ok, cool!"
     
    D2 Ultima, Jul 14, 2016
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  16. sirana

    sirana Notebook Deity

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    sirana, Jul 14, 2016
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  17. D2 Ultima

    D2 Ultima Livestreaming Master

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    That kind of flashing is only useful up until Kepler cards. Maxwell cards cannot be flashed like that, as far as I know. And neither Pascal.

    As for backing up the vBIOS, maybe it might work, but don't be surprised if that one doesn't.
     
    D2 Ultima, Jul 14, 2016
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  18. sirana

    sirana Notebook Deity

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    Really? What's the procedure with Maxwell then?
     
    sirana, Jul 14, 2016
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  19. D2 Ultima

    D2 Ultima Livestreaming Master

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    NVFlash had to be modified. You run the flasher in windows. Disable the GPU via Device Manager and run the flash then reboot (though I believe the flasher should do the disabling for you, but since I've no Maxwell cards and never tried a Maxwell card, I don't really know).

    Actually my sisters have 965Ms... I could probably use their N155RFs as test monkeys.
     
    D2 Ultima, Jul 15, 2016
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  20. sirana

    sirana Notebook Deity

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    Good to know, seems like I have to do some follow up reading to do when I upgrade to a Pascal notebook :) thx
     
    sirana, Jul 15, 2016
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  21. Cakefish

    Cakefish ¯\_(?)_/¯

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    Oh dear, so is there no way to back up before I try flashing the VBIOS mod?
     
    Cakefish, Jul 15, 2016
    #21
  22. TomJGX

    TomJGX I HATE BGA!

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    I'm surprised as I was able to backup the vBIOS using the NVFlash.. on my 970M.. Just use a older version which Svl7 has... Look on techinferno for his vBIOS flashing guide..
     
    TomJGX, Jul 15, 2016
    #22
  23. shibabz03

    shibabz03 Newbie

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    shibabz03, Jun 20, 2017
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  24. thegh0sts

    thegh0sts Notebook Nobel Laureate

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    Isn't that what the VGA BIOS collection on TPU is for?
     
    thegh0sts, Jun 20, 2017
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  25. gokica

    gokica Newbie

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    Did anyone solved the mistery of how to backup the vbios? I am facing the same issue with GPU-Z, NVFlash for DOS, Windows, Prema modified etc. My laptop is HP Zbook 15 G3 using Quadro M2000M.

    I disabled the card, tried with --protectoff, but nothing works. Vbios can not be dumped.

    Thanks
     
    gokica, Jan 26, 2018
    #25
  26. Vasudev

    Vasudev Notebook Nobel Laureate

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    Whilst saving stock vBIOS use safe mode and stock nvflash. When flashing Premamod's vBIoS use modded nvflash with certificate bypass version to flash it.
     
    Vasudev, Jan 26, 2018
    #26
  27. gokica

    gokica Newbie

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    Which stock version of NVFlash? I tried several stock (including safe mode) but all output the same message. Thank you.

    [​IMG]
     
    gokica, Jan 26, 2018
    #27
  28. Vasudev

    Vasudev Notebook Nobel Laureate

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    Disable nvidia gpu before saving original rom.
     
    Vasudev, Jan 26, 2018
    #28
  29. gokica

    gokica Newbie

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    Did that (in my first post). The result is the same.

    There must be some sort of protection. Thank you anyway.
     
    gokica, Jan 26, 2018
    #29
  30. Vasudev

    Vasudev Notebook Nobel Laureate

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    Boot win 7 with secure boot enabled.
     
    Vasudev, Jan 27, 2018
    #30
  31. thegh0sts

    thegh0sts Notebook Nobel Laureate

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    worst case: buy a programmer and read the EEPROM chip :)
     
    thegh0sts, Jan 27, 2018
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  32. gokica

    gokica Newbie

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    The options are:
    - legacy support enable & secure boot disable
    - legacy support disable & secure boot enable
    - legacy support disable & secure boot disable

    The first is the default and the only one bootable. I can not boot with the other two. I am guessing that boot disk is created with MBR and not GPT.

    I guess I should try windows 10 and GPT.

    Yes, that would be perfect. I would like to see if I can find a solution because NVFlash seems to access the chip. Just can not read the firmware image.

    If I fail then there will be no alternative but programmer.

    Thank you both.
     
    gokica, Jan 27, 2018
    #32
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  33. Vasudev

    Vasudev Notebook Nobel Laureate

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    Legacy option disabled and Secure boot enabled.
     
    Vasudev, Jan 27, 2018
    #33
  34. ijozic

    ijozic Notebook Deity

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    It does - I've flashed my 980M many times and the flasher did the disabling. I could also save the original vBIOS via GPU-Z.
     
    ijozic, Feb 6, 2018
    #34
  35. gokica

    gokica Newbie

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    I forgot to provide an update. Thanks to Valuxin's kind help I realized that the vBios is in the sBios of HP Zbook.
     
    gokica, Feb 6, 2018
    #35