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    Enable higher voltage on GeForce G 105M GPU

    Discussion in 'Acer' started by jai554, May 10, 2011.

  1. jai554

    jai554 Notebook Consultant

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    does anybody knows how to increase the voltage of the GPU??
    it would be really great if anybody can increase the voltage of the GPU.....
    G 105M GPU users will can hit 1GHz if anybody can increase the voltage....

    Thank You :)
     
    jai554, May 10, 2011
    #1
  2. jai554

    jai554 Notebook Consultant

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    anybody can help??
     
    jai554, May 11, 2011
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  3. Meaker@Sager

    Meaker@Sager Company Representative

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    Your graphics is soldered onto the motherboard meaning its bios is integrated into the system bios.

    You would have to extract your system bios, unpackage it, find the bios file, open it in Nibitor, try changing the core voltage, save it to the same named file, repackage the bios and flash it to your system and hope it does not die.
     
    Meaker@Sager, May 11, 2011
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  4. jai554

    jai554 Notebook Consultant

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    my bios is Insyde H2O
    i dont know how to extract it......
    but i have the file
    this is the link to the file......
    BIOS_Acer_2.08_A_A.zip
     
    jai554, May 11, 2011
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  5. Meaker@Sager

    Meaker@Sager Company Representative

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    All I can say is good luck.
     
    Meaker@Sager, May 11, 2011
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  6. jai554

    jai554 Notebook Consultant

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    you dont know how to extract it??
     
    jai554, May 11, 2011
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  7. Meaker@Sager

    Meaker@Sager Company Representative

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    Nope, that's something you are going to have to find out. There are others on this forum who have done similar things.
     
    Meaker@Sager, May 11, 2011
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  8. DavyGT

    DavyGT Overclocker

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    I have extracted your BIOS and found your VBIOS can run up to 1.2v. Can you confirm your current 3D voltage by checking GPUZ?
     
    DavyGT, May 11, 2011
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  9. jai554

    jai554 Notebook Consultant

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    my max voltage for my GPU is 1.20V.....
     
    jai554, May 11, 2011
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  10. DavyGT

    DavyGT Overclocker

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    Do you have the recovery method ready? There may be a way to 1.27v but I'm not sure if it works.

    That or the BIOS has reached it's limit and you need to do a hardware vmod to increase voltage.
     
    DavyGT, May 11, 2011
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  11. jai554

    jai554 Notebook Consultant

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    yes.....
    i am ready for the recovery method.......
     
    jai554, May 11, 2011
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  12. DavyGT

    DavyGT Overclocker

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    Have you tested the recovery method?
     
    DavyGT, May 11, 2011
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  13. jai554

    jai554 Notebook Consultant

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    lol.... not yet...... :D
    but i know it will work because i researched about bois recovering couples of weeks and everybody says it work..... i have all the recovery files in my computer..... i know it has a very high risk in bricking the laptop...... so, don't worry........

    EDIT: how many GPU voltmod have you done??
     
    jai554, May 11, 2011
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  14. DavyGT

    DavyGT Overclocker

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    Best test it out first as you don't know for sure if it's going to work.

    I've done both the R1 and R2 GT335M mods and have the R3 GT540M mod ready, just waiting for the recovery method and testers. I'm working on a vmod on the R2 GPU/CPU voltage regulators (they're both the same chips !!).
     
    DavyGT, May 11, 2011
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  15. jai554

    jai554 Notebook Consultant

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    the recovery method is called blind flash right???
     
    jai554, May 11, 2011
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  16. DavyGT

    DavyGT Overclocker

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    Yes, the recovery method is a blind flash.
     
    DavyGT, May 11, 2011
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  17. jai554

    jai554 Notebook Consultant

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    is 1.27V is the highest you can edit??
    can i use a thumb drive instead of a floppy for the recovery??
    do you have the software to make the recovery disk?? i'm not sure that mine will work......
     
    jai554, May 11, 2011
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  18. DavyGT

    DavyGT Overclocker

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    It appears 1.27v is the highest that I can edit.

    A thumb drive can be used instead of a floppy.

    There is no software for the recovery disk- it's just placing a specially named system BIOS file onto the USB and pressing a key combination to activate the recovery process for Insyde BIOS.
     
    DavyGT, May 11, 2011
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  19. jai554

    jai554 Notebook Consultant

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    i know what key to press to start the recovery process (Fn+Esc).....
    dose anybody failed to flash using your modded bios??(ie: m11x r1 and r2)
    i saw the thread that you can increase the voltage of GT335M by .05V on m11x r1,r2........

    if you give me the file, do i need to flash it using DOS??
     
    jai554, May 11, 2011
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  20. DavyGT

    DavyGT Overclocker

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    I don't know of anybody who failed to flash the modded R1 and R2 BIOS once testing was finished.

    You don't flash it using DOS, you use the provided Insyde Flasher utility inside Windows.

    I think it's a good idea to ask Mavke about the VBIOS maximum voltage.
     
    DavyGT, May 11, 2011
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  21. jai554

    jai554 Notebook Consultant

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    can you sent the file to me now?? :D
     
    jai554, May 11, 2011
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  22. DavyGT

    DavyGT Overclocker

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    Here is the BIOS. I was wrong, you have to use DOS to flash the BIOS. I still suggest you test the recovery method first. The usual disclaimer applies, you are responsible for your own actions.
     
    DavyGT, May 11, 2011
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  23. jai554

    jai554 Notebook Consultant

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    okay.... :)
    i have one question......
    how to flash using DOS?
     
    jai554, May 11, 2011
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  24. DavyGT

    DavyGT Overclocker

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    I'm not too sure about how to flash the BIOS in DOS. I guess it's done like this:
    1. Create a DOS bootable USB drive
    2. Run FLA$HIT.EXE
    3. If that doesn't work, type in "FLA$HIT.EXE KALG0208.fd", you may need to add -f to force the flash.

    Replace $ with S.
     
    DavyGT, May 12, 2011
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  25. weinter

    weinter /dev/null

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    Actually to be honest I don't think overvolting is a good idea because G105M is a low end graphics.
    Assuming you could overclock with unlimited potential, you would probably need to OC it until the GPU melt through the Chassis and it will still not perform comparably to high end graphics.
    Just my opinion.
     
    weinter, May 12, 2011
    #25
  26. jai554

    jai554 Notebook Consultant

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    @weinter
    its okay...... i rarely play games on my laptop :D
    btw i have made my own cooler...... it decreases my laptop temp more than 10C
    link: YouTube - Homemade Laptop Cooler

    @DavyGT
    thanks for the BIOS mod and teaching me how to use DOS flashing :)

    EDIT:
    @DavyGT
    the flash cannot be opened
    i wrote "C:\DOS\fla$hit.exe KALG0208.fd -f"
    it says This FD file can not open.
    then i try another method,
    i wrote "C:\DOS\fla$hit.exe KALG0208.fd /fe /b"
    it shows same message too.......
    how to solve this problem??

    replace $ to s
     
    jai554, May 12, 2011
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  27. DavyGT

    DavyGT Overclocker

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    I'm going to try make a Windows version with the flasher.
     
    DavyGT, May 12, 2011
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  28. jai554

    jai554 Notebook Consultant

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    okay.... Thanks :)
     
    jai554, May 12, 2011
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  29. DavyGT

    DavyGT Overclocker

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    Try this. Save your work before running InsydeFlash though.
     
    DavyGT, May 12, 2011
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  30. jai554

    jai554 Notebook Consultant

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    okay.... thanks..... :)
    i have a question.....
    how did you unpack all the bios files?

    EDIT:
    i mean unpack the FD file.....
     
    jai554, May 12, 2011
    #30
  31. jai554

    jai554 Notebook Consultant

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    Got another problem here..... :(
     

    Attached Files:

    jai554, May 13, 2011
    #31
  32. DavyGT

    DavyGT Overclocker

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    Try this. It'll probably fail though, so have the recovery method ready.
     
    DavyGT, May 13, 2011
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  33. jai554

    jai554 Notebook Consultant

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    you mean if i flash using this file, i will fail?? :confused:
     
    jai554, May 13, 2011
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  34. DavyGT

    DavyGT Overclocker

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    You might fail. Have you tested the recovery method?
     
    DavyGT, May 13, 2011
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  35. jai554

    jai554 Notebook Consultant

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    not yet.....
    what do you mean by i might fail if i flash using this file?

    EDIT:
    do you know how to create one??
    i don't think mine will work....
     
    jai554, May 13, 2011
    #35
  36. jai554

    jai554 Notebook Consultant

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    finished flashing the BIOS....
    but when i turn on my laptop..... it boots to windows but nothing on the screen.....
    my recovery method is not working..... can you help me??
     
    jai554, May 13, 2011
    #36
  37. weinter

    weinter /dev/null

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    If your laptop uses Insyde BIOS find the insyde bios recovery method.
    Get the original working BIOS file make sure it has the correct recovery filename
    eg. YYYYX64.fd
    Then copy it to to a FAT formatted thumbdrive with the flasher utilities.
    Plug it in then Fn+Esc+Power button.
    You should see flashing lights wait for it to finish.
    If you hear the fan spining and the thumbdrive flashing do not unplug the thumbdrive wait for it to complete.
    If unsure wait for 1/2 hour before attempting to unplug it.
    As I said you shouldn't mod the VGA BIOS because the tiny bit of performance boost isn't worth the giant effort you need to put it.
     
    weinter, May 13, 2011
    #37
  38. jai554

    jai554 Notebook Consultant

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    my original FD file name is KALG0208.fd
    do i need to rename it?
     
    jai554, May 13, 2011
    #38
  39. weinter

    weinter /dev/null

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    Make 2 Copies the other named KALG0208x64.fd
     
    weinter, May 13, 2011
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  40. jai554

    jai554 Notebook Consultant

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    how to make an autorun???
    i want to flash it automatically when i booted to windows......
     
    jai554, May 13, 2011
    #40
  41. weinter

    weinter /dev/null

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    Erm I meant you need to activate emergency BIOS recovery not boot to Windows.
    Hold Down Fn + Esc then press and release the power button wait for a while then release the Fn + Esc
     
    weinter, May 13, 2011
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  42. jai554

    jai554 Notebook Consultant

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    i know that......
    im able to boot to windows without any image.....
    now my laptop work again.....
    i just copy KALG0208.exe (Insyde windows flashing utility) into my flash drive and launch the program manually without looking anything on the screen.....
    i just use a keyboard..... :)
    maybe i need to find the GPU voltage regulator myself.... :D
     
    jai554, May 13, 2011
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  43. jai554

    jai554 Notebook Consultant

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    jai554, May 13, 2011
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  44. weinter

    weinter /dev/null

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    I think it is not worth it because the G105 M has very little Streaming Processors raising Clockspeed will not boost performance by much.
     
    weinter, May 14, 2011
    #44
  45. jai554

    jai554 Notebook Consultant

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    im making this mod just for fun....
    i try to hit 1GHz on the core.... :D
     
    jai554, May 14, 2011
    #45