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    ATI 4870M BIOS chip half size problem

    Discussion in 'Gaming (Software and Graphics Cards)' started by saintsam, Aug 17, 2012.

  1. saintsam

    saintsam Notebook Enthusiast

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    Hi all ,
    I bought from eBay this 4870M taken from Alienware. This was listed like (primary) card in in crossfire mode. When I install it , the colors was 8 bit and resolution cannot be changed . Then I closely look at the card I found VBIOS chip was 64 kB except of the ordinary 128 kB . After a lot of research and tests , finally i decide to change the BIOS with one double sized , but first i program the BIOS with programmer . And finally i've got a nice working ATI 4870M video . If someone going to buy 4870M from Alienware just beware of this problem .

    Cheers :)
     
    saintsam, Aug 17, 2012
    #1
  2. naldor

    naldor Notebook Consultant

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    lol I first thought the bios chip was literally half the size haha but u mean the vbios file I guess :p
     
    naldor, Aug 18, 2012
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  3. saintsam

    saintsam Notebook Enthusiast

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    The memmory size of vBIOS on FIRST ATI Video Card is half of size of normal ATI Single Video Card working "alone" - 64 kB against 128 kB.
     
    saintsam, Aug 26, 2012
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