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EISA Connector on Motherboard

Discussion in 'Building a new PC' started by Jinkazuya, Dec 29, 2009.

  1. Jinkazuya

    Jinkazuya Regular member

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    Well...Could anybody care to explain how this work? But the what is important here is what it looks like? According to some of the article or the book I read, it is said that the connector has two different levels. The top level is for the ISA and the other level is for the EISA...But I cannot find any picture of this and how the pins of the connector look like. I know this kind of slot or connector is now obsolete, but when you learn you should learn things existing in the past to the present.
     
    Jinkazuya, Dec 29, 2009
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  2. ddp

    ddp Moderator Staff Member

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    when looking at a EISA card's connector, you will notice 2 rows of contacts on each side of the card. 1 row is higher then the other on both sides of the connector. the motherboard connector will have same layout as the card.
     
    ddp, Dec 29, 2009
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  3. Jinkazuya

    Jinkazuya Regular member

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    When you mean 1 row is higher than the other, did you mean that either the first row is longer(protrude) than the second row or the second row(protrude) than the first row? The connector is the golden pins of the adapter card right?

    So what about the ISA connector? Does it mean that the ISA is the one-sided connector? That means only one side of the connector filled with the golden pins?
     
    Last edited: Dec 29, 2009
    Jinkazuya, Dec 29, 2009
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  4. ddp

    ddp Moderator Staff Member

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    the 2 rows are staggered at the top like a saw tooth but flush\even at the bottom of card. isa has contacts on both sides of the card but only 1 row compared to 2 rows on eisa card.
     
    ddp, Dec 29, 2009
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  5. Jinkazuya

    Jinkazuya Regular member

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    Is there anything that helps visualize it? I have already tried the best out of my imagination, but I sort of understand the shape but not really sure exactly what it really looks like?

    Besides, when somebody mentions about motherboard speed, does he or she really mean the FSB speed?
     
    Jinkazuya, Dec 29, 2009
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  6. ddp

    ddp Moderator Staff Member

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    ddp, Dec 29, 2009
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  7. Jinkazuya

    Jinkazuya Regular member

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    But by looking at the slot of ISA and EISA, they are just the same. Or the difference lies within the slots themselves which is not visible to the exterior of the slot?

    Is motherboard speed the same as FSB?
     
    Jinkazuya, Dec 30, 2009
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  8. k7vc

    k7vc Regular member

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    Look at the EISA card connector in the third photograph. The traces are different heights and widths. Compare that EISA connector with the older ISA connector right above it.

    Dick
     
    k7vc, Dec 31, 2009
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