Toshiba romless MXM-II HD4650 DDR3 1 GB @ Acer 5920G soldering project for beginners

Discussion in 'Acer' started by ergoon, Oct 19, 2012.

  1. ergoon

    ergoon Notebook Guru

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    @triturbo: Thanks a lot for the initial information about such a plan!
    @.NetRolller 3D: Thanks for your knowledge and great MXM support!
    @Jacek of HQ Computers: Thanks for your patience and help!

    This is my first thread and a need some help. I'd like to check, if it is possible to use a graphics card of a Toshiba notebook --> a romless HD4650 DDR3 1GB MXM-II <-- at my Acer 5920G. I am not an electrical engineering technician. That's why I need some beginners information. I also want to understand the process. Therefore, I have already read a lot things about the topic at the forum. - For the moment I have just a picture of the card and a seller, who would send me the hardware after the solution of the following tasks:


    IMPORTANT UPDATE 2013: "valuxin" suggested a mod of the bios WITHOUT soldering a chip (thx to "triturbo" for the link):
    My question: Has anybody successfully completed the procedure with a romless HD4650 (or other cards)? It would be interesting to know!

    Be careful, modding your sBIOS could damage your notebook! No guaranties!
    Needed files, system bios for the 5920G and video bios for the HD4650: Posting #60


    1. Get pictures of the card. For a start I have only one picture and marked the spot for the EEPROM. DONE!
    EEPROMmarked.jpg

    2. Send the pictures to the soldering pros namely .NetRolller 3D DONE!
    3. Get the pictures back with marked spots for soldering DONE!
    4. Get a soldering manual for the EEPROM and resistors DONE!
    5. Get an adequate vBIOS for a HD4650, MXM-II, DDR3, 1GB card DONE! (Download: #60)
    6. Ask an experienced friend to perform the soldering process DONE!
    7. Buy an adequate EEPROM Got a flashed one by Jacek. DONE!
    8. Buy the needed resistors DONE!
    9. Get the reserved card DONE!
    10. Do the soldering Plan B: Look at my post: It works! and take a look at the pictures below.

    Unstable Construction V1 - Three classic 10 kOhm resistors next to the card
    [​IMG]
    (Unfortunately, cracked V1, while removing the metal frame - RIP.)

    Construction V2 - Backpacked Resistors @ M25P05A/10A @ Acer 5920G
    [​IMG]
    [​IMG]

    11. Blind flash the vBIOS Not needed, cf. 7.!
    12. Test it at my Acer 5920g, inform you about results Partially DONE!
    13. Yes, you know the number, it is given for all unexpected problems! :eek: Wrecked V1!

    14. COOLING THE SYSTEM: See triturbo's comprehensive tutorial: http://forum.notebookreview.com/not...tom-builds/569783-5920g-cooling-overhaul.html DONE!

    I know I need a lot of help and there could be some hooks, let's go. :)
    Thanks, ergoon


    v v v v v v v v v v v v v v v v UPDATES SECTION v v v v v v v v v v v v v v v v
    I am not responsible for any damages to your notebook's functionality by using the information provided here. Proceed at your own risk.

    Overclocking HD4650 to the level of a HD4670
    notebookcheck.net - HD4650, HD4670

    Be careful, check the temperatures of the card, no guaranties! I've managed to change the clock frequencies of the GPU core and memory, using the RBE - Radeon BIOS editor (v1.28), loaded the Toshiba vBIOS (HD4650DDR3.ROM uploaded by .NetRolller 3D) and just used the "Clock tuning wizard" button with the settings: | GPU (MHz): 675 | RAM (MHz): 800 | Voltage (V): 1.100 |.

    The Voltage should be 1.25 V as triturbo stated, but it isn't possible to change that setting to that value, so I used the highest possible value, saved the modified vBIOS and flashed it at DOS level with ATIFlash v3.99 (ATIFLASH.EXE -f -p 0 MODBIOS.ROM). I've checked the temperatures and stability using the tools GPUTool (CTP1), GPU-Z (0.6.6), Furmark (1.10.1) and MSI Afterburner (2.2.5). Additionally, I found a tool to check the video RAM of a card. There is a version for Windows and even a bootable image to test your card at a clean environment! I am always impressed to find such great tools at the net: Video Memory stress Test by Cherkes Mihail. - AND, found one more tool for checking your GPU: OCCT - Overclock Checking Tool by French developers with "Russian style".

    [​IMG]

    At full load the temperatures are at ca. 85°C (normal use, e.g. writing this thread: 50°C) and the card works stable.
    Maybe, you don't even need to mod the vBIOS to overclock the card using this software tools. You just need to find a way to unlock the maximum settings for the card.

    Construction V2 - Backpacked Resistors @ M25P05A/10A @ Acer 5920G
    Due to the instability of my first design using wires and classic resistors, I've decided to rebuild the construction. This time I mounted three SMD resistors (10 kOhm, size 0805) at the top of a programmed M25P05A/10A EEPROM and connected the needed Pins (1-R-8, 2-R-8, 3-R-8) with conducting silver color. Click on the link for more information.
    I have lost an SMD element while removing the metal frame of the card. Need to replace it, can't go on for now: Missing SMD element - Problem solved, but unfortunately damaged the version V1 permanently.
    Thanks to Jacek for sending me better pictures of the card:
    One marker at the card tells SAMSUNG: I think, it is just the manufacturer of the RAM.

    hd4650_romless_front+back.jpg

    UPDATE: I've got a second card of the same type, but the RAM chips are by HYNIX now. Sorry, I'can't give you more info about the first card. It is wrecked for the moment. I am currently using the second card as "Construction V2".
    Position of the Resistors at the HD4650: Thanks to .NetRolller 3D for the information and the picture! It is taken for a HD4570 card sharing the same layout with the other model. - Remember: It is the backside of the board. - I've added a scheme for performing the soldering directly at the EEPROM PINs:
    ResistorsPlacementNetRolller.jpg
    .NetRolller 3D reuploaded the vBIOS file for the HD4650: The VBIOSes were extracted from the original Toshiba L500 SBIOS. The only Toshiba HD4650 in existence is the 1GB DDR3 version. It should work as .NetRolller 3D and triturbo comfirmed. The info in front of the files is mixed up, but the filename should be clear. <s>
    </s>Unfortunately the new links are down too. Here is the link for the videoBIOS ROM file and also for the optional MXM corrected systemBIOS: #60

    I was able to open the file (HD4650DDR3.ROM) using Radeon Bios Editor v1.28. It tells me some information about the bios, but I cannot rate this info. I.e. the amount of RAM isn't given.
    Download TechPowerUp Radeon Bios Editor v1.28 | techPowerUp

    EEPROM: I will use a M25P10-AVMN6 SOIC8 for the ATI card: The PINs are numbered as shown at the shematic picture. A chip should have a marker point or bevelled edge or side to identify the direction of the component.
    2chipsNUMBERS.png


    Information about the needed parts and a vBIOS: The manual was originally posted for a Toshiba ATI HD4570 card, but should be suitable for the HD4650. Unfortunately the links for the vBIOS are down and I don't know, if the vBIOS is/was for the "HD4650 DDR3 1 GB" version. NEWS: The links were updated - see previous part of the update section - and the version confirmed by .NetRolller 3D.

    http://forum.notebookreview.com/acer/462852-acer-5920g-gpu-upgrade-problem-3.html

    Info by .NetRolller 3D, comparing different procedures:
    http://forum.notebookreview.com/com...-broken-8600m-gt-graphics-card-i-fl90-17.html
    A HD4650 flashed to a HD4670, interesting detail; - found some BIOS versions (also a MSI) for a HD4670 GDDR3 there: Sorry, the linked BIOS versions DON'T work with my card. I cannot get a screen during bootup the notebook.
    <s>Acer.HD4670Mobility.1024: VGA Bios Collection: Acer HD 4670 Mobility 1024 MB | techPowerUp
    ATI.HD4670Mobility.1024: VGA Bios Collection: ATI HD 4670 Mobility 1024 MB | techPowerUp
    MSI.HD4670.1024: VGA Bios Collection: MSI HD 4670 1024 MB | techPowerUp</s>

    Of course, .NetRolller 3D- the most valuable NBR user for this topic - has the correct answer.
    Look at the overclocking info above.
    Soldering manual for a 230M GT card:
    http://forum.notebookreview.com/acer/575866-acer-mxm-bios-mods-discussion-x920g-vs-9600m-gt-53.html

    Some information about soldering and alternatives:
    http://forum.notebookreview.com/acer/659923-acer-aspire-8920g-upgrade.html

    I use this BIOS at my notebook, because that could solve some preliminary problems:
    http://forum.notebookreview.com/acer/575866-acer-mxm-bios-mods-discussion-x920g-vs-9600m-gt.html

    List and experiences about Acer models and mxm graphic cards:
    http://forum.notebookreview.com/acer/396320-acer-mxm-models-cards.html
     

    Attached Files:

  2. .NetRolller 3D

    .NetRolller 3D Notebook Deity

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    The resistor pads are on the backside of the board, near the board mounting hole. They are not next to the chip.

    DoZe's pic shows a GT 230M, which has a completely different PCB.
     
  3. ergoon

    ergoon Notebook Guru

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    @.NetRolller 3D: Thanks for joining this thread! Ok, so I need to correct my statements. I did not expect to see you so fast. I am still editing/updating my initial post. I've just uploaded pictures of both sides of the HD4650. There is a zoom of the backside of the card. Where are the resistor places situated? - I could guess, but would be wrong again:

    IMG_0070_cropBACK.jpg
     
  4. .NetRolller 3D

    .NetRolller 3D Notebook Deity

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    Here is a pic I sent earlier to OS-Store, to help him sell pre-modded 4570s (it's the same for the 4650 as well):
    closeup-update.jpg
     
  5. ergoon

    ergoon Notebook Guru

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    @.NetRolller 3D: Congrats to the 1000th post! - Thanks for your picture, you are invaluable! - I've updated the information at the initial post.

    Do I have a chance to get a suitable vBIOS file for the "MXM-II HD4650 DDR3 1 GB card" which is working for my Acer 5920G? You've posted one, but the link is down and a was not sure about the card version. What do I need to check?

    UPDATE: Found the answer at thread: http://forum.notebookreview.com/acer/462852-acer-5920g-gpu-upgrade-problem-3.html#post8898804

     
  6. .NetRolller 3D

    .NetRolller 3D Notebook Deity

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    Yes, the VBIOSes were extracted from the original Toshiba L500 SBIOS. The only Toshiba HD4650 in existence is the 1GB DDR3 version.
     
  7. triturbo

    triturbo Long live 16:10 and MXM-B

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    Don't worry about RBE not showing the amount of RAM. It usually acts like this, it doesn't shows mine as well. About compatibility - it should work, if it doesn't, I have some HP HD4650 1GB DDR3 vBIOS laying around. In the past (HD3650 times), a lot of the boards had HP vBIOSes and they worked on Acers, but anyway, as I said, it should work, considering everything else is done properly :D My vBIOS is a MSI one, just FYI.
     
  8. ergoon

    ergoon Notebook Guru

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    @triturbo: Thanks for joining! It would be nice if you can post the HP bios.
    @.NetRolller 3D: Thanks for your confirmation of the vBIOS file!

    @ Jacek: Thanks for your patience! :thumbsup:

    I've decided to order the graphics card. - I will inform you next week about the status!

    Please keep your fingers crossed.
     
  9. .NetRolller 3D

    .NetRolller 3D Notebook Deity

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    @triturbo: MSI vs. Toshiba is not the only difference - your card has GDDR3 memory (basically DDR2 with extensions for high-speed graphics usage), while the Toshiba card uses JEDEC standard PC3-12800 DDR3 chips.
     
  10. triturbo

    triturbo Long live 16:10 and MXM-B

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    What I meant is, it doesn't matter that the vBIOS comes from different vendor. That's why I said that it should work, even though it's Toshiba. Anyway, looking forward to see how it's going to turn out :)

    Here's the HP one.

    View attachment HD4650.zip
     
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