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Accidentally flashed my 5870 with a modified 6950 BIOS...recovery possible?

Discussion in 'AMD / ATI' started by Ductapemaster, Jan 3, 2014.

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  1. Lianni1807

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    I need your help a lot! Same problem with Sapphire Radeon HD 6950 2G DIRT 3 EDITION #11188-05 (could be?) Trying to flash a 6970 Rom : /

    I've got no video :twitch:

    I found this datasheet
    http://datasheet.eeworld.com.cn/pdf/PMC/152598_PM25LV010.pdf

    I have to wire pins 1 and 8 right?
     
    Last edited: Apr 22, 2014
  2. Law-II

    Law-II

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    Hi

    Welcome to TPU

    Answer: Only if the vga card is not recognised by atiflash at a DOS Prompt

    Question: Is card still recognised by atiflash at DOS prompt? [If so follow instructions without attaching wire]

    Edit:
    Question: Assume instructions where followed from Here ?
    Note:
    these instructions are for Reference Design ONLY Update: 2
    Example:
    Reference Design Radeon-HD6950-PCB.jpg

    Note: Sapphire Radeon HD 6950 2G DIRT 3 EDITION #11188-05 is NON-Reference design PCB
    Example:
    Sapphire-HD6950-Dirt3-Edition.jpg
    Will need to reflash the vga card with Original or backup of Original vbios image [Note: should have edited a copy of vbios image with RBE and selected shader unlock saved image and flashed at DOS prompt for this model *If shader paths have not been laser cut they should open*]

    **If able to access windows delete AMD/ATI drivers before flashing at DOS Prompt**

    Follow Instructions Here

    atb

    Law-II
     
    Last edited: Apr 23, 2014
    manofthem and Lianni1807 say thanks.
  3. Lianni1807

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    Thanks for the welcome and your time Law, I followed the instructions that you gave to the last guy and works perfectly!
     
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  4. Law-II

    Law-II

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    Hi

    Great to read that the vga card is up and running once more :toast:

    atb

    Law-II
     
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  5. illuminaughty New Member

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    I managed to flash a 5870 with a 4890 bios and it's not showing up under any flashing utility in windows or DOS. Can anyone tell me how I go about finding the chip I need to solder a wire to pins 1 and 8? No clue how to find that chip, fan is already off. Thanks in advance.
     
  6. Law-II

    Law-II

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    Hi

    Welcome to TPU

    Upload High Res Pics of the PCB [make sure they pick out the [chip serial numbers] most likley looking for PMLV010, from the HD 5870 pcb's looks like there are only three 8pin chips to choose from [cannot identify from the pics on the www as they are all low quality]

    Note: If doing this without high res camara, use magnifying glass and bright light [pin 1 has a dot next to it]

    Tip: google, chip number and get datasheet

    atb

    Law-II
     
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  7. illuminaughty New Member

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    I'll get my friend who's a photographer to take some pictures, I don't see any chip with a white "PMLV010" next to it, specifically the eight pin chips. Am I looking for a white label next to the chip, or the label on the chip itself?

    A quick google search shows the sapphire board looks to be identical:

    [​IMG]
     
  8. Law-II

    Law-II

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    Hi

    Good; need high res pic of the *front of the PCB [*side with the GPU on]

    [Not a lable on it or next to it] on the surface of the 8pin chip is enscribed/printed with its datasheet reference number [dot next to pin 1 with arrow pointing at it]
    *Example:
    Pm25LV010 small.jpg

    Full image here [*Example HD 5970 high res pic]

    correct pcb just wrong side [that is a pic of the back of the PCB]

    atb

    Law-II
     
    Last edited: Jun 26, 2014
  9. Ferrum Master

    Ferrum Master

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    For these cases i still have a PCI ATI mach64 card... despite the fact a have a normal SPI eeprom flasher...
     
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  10. illuminaughty New Member

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    Found this pin! Is it safe to flash this card without the cooler attached for flashing purposes only (booting into dos from a usb drive, not even loading into windows)?

    Any tips for soldering something this small? I've only done larger circuit boards.
     
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  11. Law-II

    Law-II

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    Hi

    NO; [** Important: must reattach heatsink]

    sorry no tips to share on soldering; [strip wire from old IDE 80pin cable and loop through the gap between the chip leg and pcb twist it so that it forms good contact; ensure it is isolated from other components/pcb trace]
    follow instructions here

    atb

    Law-II
     
  12. illuminaughty New Member

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    I heard you can use just thermal paste on 5870 heat sinks applied a bit thick, think it would be okay to paste it until i can order some thermal tape (probably 3M)?

    the IDE ribbon idea sounds good; will probably try that.
     
  13. W1zzard

    W1zzard Administrator Staff Member

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    Protip: If you just have to attach a cable to an IC pin, solder to the top of the IC's pin, not to where it makes contact with the PCB. Easier to reach, easier to remove.

    [​IMG]

    Sorry for the dusty card. (Disclaimer: The pic is just to illustrate what I said. It is neither the IC required to solder in this thread, nor the correct pin)
     
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    10 Year Member at TPU
  14. Law-II

    Law-II

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    Hi

    Sounds like a rush job;
    advice, slow down
    *get all the components needed in advance*
    use MX4 or equivelant for the GPU
    thermal pads: [VRM's and Memory] examples here

    atb

    Law-II
     
  15. Ferrum Master

    Ferrum Master

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    Actually a very bad tip... If the soldering gun is way to hot and powerful and plate grounding way to good, it might fry the IC.

    The only normal way is to solder on indirect points. Caps and resistor points on the PCB. Unless you have a preheating oven to put it underneath.
     
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  16. vega22

    vega22

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    just out of interest, how hot would the gun need to get to fry the ic?
     
  17. W1zzard

    W1zzard Administrator Staff Member

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    If that is the case, you will rip up the solder pad from the PCB when soldering. The IC can probably take the heat for longer.

    Edit: wait, I'm not saying you solder the IC's own legs like that. I'm saying you _attach_ a _separate_ cable to an IC like this.
     
    10 Year Member at TPU
  18. Ferrum Master

    Ferrum Master

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    Yeah, I said that only because we are dealing with amateur on PCB rework... he might do something wrong, not you :D. GPU's are very boneskinned for soldering due to copper layers, so yeah...

    Myself I am just soldering them off using hot air gun, and putting on etched PCB... and flashing using RaspberryPI SPI bus...

    Here is a good guide.

    I am still wondering if the PCI VGA isn't an easier option...
     
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  19. Law-II

    Law-II

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    Hi

    Unless I have missed the *point/issue in illuminaughty post; how will this help?

    [Note: vbios is not recognied at the DOS prompt by atiflash; due to a HD 4890 vbios image being flashed to the vga card which has changed the device ID along with a few other parameters]

    atb

    Law-II
     
  20. Ferrum Master

    Ferrum Master

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    W1zzard could confirm, but I suspect the devid fields in hex are same for any bioses... he flashed ati to ati bios, it shouldn't be a problem. Atflash must see this card. Personally I had only such problems only if the flash is burned, not cross flashed. Atiflash with max hardcore :D switches should flash any kind of stuff into the eeprom.
     
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  21. illuminaughty New Member

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    I use an old pci card when working on this card. Nothing recognizes the card, even a blind flash did't work. Both
     
  22. stilloading adventures New Member

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    hello evrybody
    i have a HD7850
    and im having the same issue i just started with chrasing in games and flashed the bios (and just so stupid i was i forgot to make a bios backup) i flashed to a non reference card and mine is a reference card.
    after some use it died and didten want to go back, my motherboard just says there is a problem/no video card.
    the method i am gonna try to re flash is to solder a wire on to pin 1 and 8 on the bios chip but im not shure on witch chip is the bios chip if its the same as the 7870 (placed the same place) because i saw this method on youtube "
    " but i want to be 100% that im doin it on the right chip so i dont kill other chips.
     
  23. Law-II

    Law-II

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    Hi

    Welcome to TPU

    Manufactures Make?
    Model Number?
    SKU#?
    or

    High Res Picture of the vga cards PCB

    Note: If possible, upload high definition pictures of the XFX 7850's PCB front and back
    [select: TPU web site select: MORE select: FREE IMAGE HOSTING]

    Note: DO NOT post serial number

    Should look for Pm25LV010 or Pm25L XXXX on the surface of the 8pin chip is inscribed/printed with its datasheet reference number [may require magnifying glass and bright light]
    *
    Example of Vbios Chip from HD 5970
    Pm25LV010 small.jpg


    atb

    Law-II
     
    Last edited: Jan 4, 2015
  24. jboydgolfer

    jboydgolfer

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    I should be removed from the internet?? Clever.......:slap:

    I was merely commenting on the RIDICULOUS quantity of "misflashed" GPU threads on the internet, I was neither being all too serious, or hopeful that IF they WERE removed people would stop screwing around with they're hardware... I'll be certain to Clear anymore of MY posts with "Steevo" the posting police before I act ridiculous, and speak My mind again, and wish a NEW member good luck and support.

    all apologies to Steevo...
     
  25. Schmuckley

    Schmuckley

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    :clap: I was gonna say..It sees the card..
    I'm a compulsive GPU-BIOS flasher, too. :oops:
     

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