which bios chips in these motherboards

Discussion in 'Supermicro' started by Nicolas Noiseux, May 17, 2007.

  1. I received some motherboards without bios chips on them.
    Are they dead without them?
    Which bios chip is used in a p4dl6 mb?
    Which bios chip is used in a p4dp6 mb?
    Thanks in advance.
    Nicolas Noiseux, May 17, 2007
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  2. Nicolas Noiseux

    INTY Guest

    Yes, a motherboard would'nt even POST or recognise her CPU without the Bios.
    If it's a square and brown\black socket it's a PLCC-package Flash EEPROM
    (capacity from 2 to 4 Mbites)
    or if it's a rectangular and black socket it's a DIL package Flash EEPROM
    (Capacity up to 2Mbites, usually a 29F1001)

    Ask more if you want!

    INTY, May 30, 2007
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  3. According to the motherboard manuals they are 4 mbit devices.
    They are plcc32 devices. I will measure the supply voltage.

    Is it true that supermicro flash programming software will support
    multiple types of devices? If so I will try a 29f040.
    If not, I will need to know which device for each board.
    A remaining device question - what speed 29f040 to use?

    Does anybody know a flash programming service near boston ma?

    Nicolas Noiseux, Jun 7, 2007
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