finding a replacement BIOS flash chip as backup for repair.

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  • meanderer
    Senior Member
    • Jul 2010
    • 50
    #1

    finding a replacement BIOS flash chip as backup for repair.

    I am looking at a SONY VAIO laptop motherboard that may have a corrupted BIOS and after some research (squinting hard on the motherboard components) I found a flash chip. It is Eon EN25F80-75HCP.
    some spec include 100Mhz max clock speed, 2.7-3.6V input voltage, and 4K page of 256 bytes, etc.

    I can't find a suitable replacement on digikey or mouser with exact specs. If anyone can help locate a vendor with good parts that would be great.

    If I must choose a different value for some of the specs what can I change and expect that it still work? I imagine that I have to keep clock rating and voltage exact, how about memory page configurations?
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: finding a replacement BIOS flash chip as backup for repair.

      See page 32. - Other variations of that PN might work too.
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        • meanderer
          Senior Member
          • Jul 2010
          • 50
          #3
          Re: finding a replacement BIOS flash chip as backup for repair.

          Thanks, I have seen that datasheet. I need a vendor for this part, both digikey and mouser don't carry it.

            Comment

            • dobber
              Senior Member
              • Jul 2008
              • 83
              #4
              Re: finding a replacement BIOS flash chip as backup for repair.

              If you cant find it, you could go to ebay and find a bad board for cheap that has it on it. I have had to do that before, with other chips.

              PS did you try a Crisis Bios Recovery Disk? you may be able to just reflash it.
              Last edited by dobber; 01-10-2011, 12:24 PM.

                Comment

                • kikkoman
                  Badcaps Veteran
                  • Jul 2007
                  • 691
                  #5
                  Re: finding a replacement BIOS flash chip as backup for repair.

                  this (among many other) should work:
                  http://search.digikey.com/scripts/Dk...25Q80BVSSIG-ND

                  your original part has 75MHz max. clock speed, so there are plenty of alternatives.
                  "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken

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